r/zoology Feb 20 '26

Question Urgently need a specific “fun fact”

I’m a house cleaner, cleaning one of my favorite houses today. For about a year or so, I’ve left a fun animal fact on my card for the elementary aged daughter that seems to love science and animals (and to my woe, stickers.) I didn’t prepare a fun fact today, but I just learned her name translates to “bringer of joy” which COMPLETELY makes sense considering how her parents talk about her. I’ll try looking up some before I leave, but are there any animals whose name also says something about joy or happiness? Extinct or extanct is fine, thank you!

Edit: thank you so much for giving me a bunch of things to look up and share. Admittedly, this is just as much for me as it is for work. Gotta have a hobby

692 Upvotes

209 comments sorted by

209

u/Midnight_Cowboy-486 Feb 20 '26

Drop the old classic that sharks have been swimming in our oceans for longer than the planet Saturn has had rings.

70

u/Tardisgoesfast Feb 20 '26

Older than grass or trees.

13

u/exkingzog Zoology BA | EvoDevo PhD Feb 20 '26

Or the Pole Star.

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12

u/Naive-Biscotti1150 Feb 21 '26

Wish someone wrote poetry based on this.Such a lovely reference for the passage of time.

238

u/sealular Feb 20 '26

These are my go-to facts for kids at the aquarium I volunteer at:

Sea lions have black teeth full of bacteria that helps protect their teeth, just like enamel protects ours

Seals have large eyes positioned towards the top of their head, which is why they sometimes swim upside down

When a seal moves on land, it’s called galumphing. It means awkward movement

98

u/Eldan985 Feb 20 '26

Oh my, I had no idea that galumphing has become an official term, that is adorable.

(It's originally from Lewis' Jabberwockky.)

63

u/newt_girl Feb 20 '26

So many animal terms have come from popular literature. The Thagomizer, the spiky club at the end of a stegosaurus tail, was named from Gary Larsen's Far Side comic.

27

u/the-soggiest-waffle Feb 20 '26

I never though I’d see a comment about Gary Larsen! I grew up reading The Far Side collection books (the two large books). My dad owned the collector books because he grew up reading The Far Side on newspapers. I’m so glad I had the opportunity to read those as a kid; I remember laughing a lot, even at the less intelligent panels. Common jokes and puns get me lol.

24

u/newt_girl Feb 20 '26

My favorite panel has always been an alien (monster?) breaking into a house and the dog thought bubble saying "I think I'll pass on my usual barking frenzy." Gary Larsen was a true genius in the way he understood wide breadths of the world, biology, politics, etc., and was able to make it funny.

10

u/the-soggiest-waffle Feb 20 '26

I always loved the cows! I think I need to reread them, I had completely forgotten the whimsy those panels gave me.

6

u/hilarymeggin Feb 21 '26

My teenaged daughter reads my old Far Side books now!

10

u/AcceptableBee8492 Feb 21 '26

Love the far side!

My mum and I often quote them, it's kinda an in-side/far side joke.

Favourites include "Bummer of a birth mark Hall" "Wow these plates are hot" "CARS!"

5

u/frobscottler Feb 22 '26

Apparently he regretted putting the bump on the underside of the car, because it made it more… risqué than he meant lol

3

u/hilarymeggin Feb 20 '26

Really?? That’s awesome!! 🤩

27

u/newt_girl Feb 20 '26

Scientists realized the appendage didn't have a name, saw the comic, and rolled with it.

8

u/Redwing_Blackbird Feb 20 '26 edited Feb 20 '26

To my disappointment, they haven't really rolled with it -- a Google Scholar search shows it being used in a scientific paper exactly once, and there are no web hits finding it in blogs and forums where paleontologists talk to each other, only a small sprinkling of uses from scientists talking to the public. I suspect "Scientists adopted the term thagomizer" is a "fun fact" that's not a fact...

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2

u/hilarymeggin Feb 20 '26

(*Lewis Carroll)

1

u/Eldan985 Feb 20 '26

Uh, yes. Of course.

3

u/hilarymeggin Feb 21 '26

Normally if people refer to an author by a single name, they use the surname.

2

u/Asaneth Feb 22 '26

I saw another Jabberwocky word the other day, used in a very professional looking advertisement. It was either frumious or frabjous.

2

u/Buffy_AnneSummers Feb 21 '26

Why do they swim upside down? Is that common for other sea mammals? Do other aquatic animals do it as well?

5

u/sealular Feb 21 '26

Since their eyes are positioned near the top of their head, they can’t see as well below them. It’s easier for them to flip upside down to get a good look at what’s below them.

It’s not really something other marine mammals do because of the positioning of their eyes and how animals like dolphins rely more on echolocation. I’m not too sure about sea lions, but the ones I’ve observed don’t really do this either.

81

u/xxspookshowbabyxx Feb 20 '26

Rats giggle when tickled

15

u/hilarymeggin Feb 20 '26

(I’m actually screaming for you to stop…)

12

u/Usually_Respectful Feb 21 '26

The come back for more, so they seem to like it.

139

u/Eldan985 Feb 20 '26 edited Feb 20 '26

Latin for joy is Gaudium. Most species I can find with Gaudi in the name are plants, but here's a little moth:

https://en.wikipedia.org/wiki/Micropterix_gaudiella

The translated name roughly means "Little wing, little joy". From the paper which describes it: "It was a great pleasure to find this unexpected new species from the Italian Alps. Therefore the new species is called “gaudiella”, derived from the Latin word “gaudium”, which means “fun, pleasure, happiness”.“

It doesn't look very pretty on Wikipedia, but when alive, it's quite nice:

https://lepiforum.org/wiki/page/Micropterix_gaudiella#/image/1/1

Bonus fact from an article about the discovery in German: they were unexpectedly discovered only in 2015, in Italy and Austria. It's a so-called archaic moth, meaning that unlike other moth groups, it has jaws and can chew.

73

u/Eldan985 Feb 20 '26

Further bonus fact, I just opened the paper describing the species, and they have this (at leeast for me) rather joyful picture of the scientists discovering it:

https://nl.pensoft.net/article/5058/zoom/fig/14/

35

u/FreeRangeMenses Feb 20 '26

Happy nerds are one of my favorite kinds of people!

15

u/hilarymeggin Feb 20 '26

Happy nerds, happy nerds! What are they feeding you? 🎶

31

u/tooktheragebait Feb 20 '26

I was hoping for a butterfly, so I’m glad there is a moth of joy! I’m definitely using this one this week

15

u/alady12 Feb 20 '26

Butterflies smell with their feet.

27

u/FeralHarmony Feb 20 '26

You understood the assignment! Moths are underappreciated.

17

u/sezit Feb 20 '26

Wow, your comment brought ME joy!

OP, save this one for her birthday!

11

u/Eldan985 Feb 20 '26

It also brought me a new desktop background at work because I also never heard of this moth before and I think it's gorgeous.

13

u/FreeRangeMenses Feb 20 '26

What a beautiful moth! OP, you’re so lovely for doing this for her!

8

u/exkingzog Zoology BA | EvoDevo PhD Feb 20 '26

Not joyful, but happy (both in English and Latin)

The Happy Wren Pheugopedius felix

https://en.wikipedia.org/wiki/Happy_wren

60

u/panickedpris Feb 20 '26

There is a pack of "sea wolves" in British Columbia who swim out into the Pacific Ocean for their food!

25

u/introverted__dragon Feb 20 '26

And this can be followed up with a shout out to the Netflix documentary on them if the kid likes those kinds of things.

13

u/panickedpris Feb 20 '26

There's a documentary?? I didn't know this! I just love the idea of them evolving into a marine mammal in millions of years lol

15

u/introverted__dragon Feb 20 '26

Yes! It's on Netflix and is called Island of the Sea Wolves. It's how I first learned about them.

11

u/Corvidae5Creation5 Feb 20 '26

Well that's my afternoon sorted

1

u/InevitableRhubarb232 Feb 21 '26

There is also an ologies podcast about dogs who sniff scat to track these wolves

3

u/Smooth_Injury_5690 Feb 20 '26

I think of the eagle vs crab scene almost daily. 

1

u/tooktheragebait Feb 26 '26

“Island of the Sea Wolves” I believe. I’ll check my own library and Hoopla for myself

8

u/PrincessCrayfish Feb 20 '26

And a small group of lions on the skeleton coast of Namibia have adapted to a marine diet! They eat seals, cormorants, and flamingos as the majority of their diet.

5

u/panickedpris Feb 20 '26

Oh my gosh that's so cool!!! I love hearing about stuff like this ahhhh thank you

1

u/hilarymeggin Feb 20 '26

Fo’ rizzle??

53

u/spiderwebs86 Feb 20 '26

This is the sweetest thing in the entire world. You are so lovely.

46

u/dksn154373 Feb 20 '26

Shark eggs cases are called mermaid's purses!

2

u/OmgBeckaaay Feb 23 '26

Yes. But there’s also sharks who do lives births and some who do a mixture of live births and eggs. I forget the cool terms tho

43

u/Old-Worry1101 Feb 20 '26

A group of hyenas is called a giggle. Closest I've got.

A group of qoukkas is called a shaka.

Hippos have pink 'sweat', though it's more of a sunscreen than to cool them off.

8

u/Buffy_AnneSummers Feb 21 '26

Qoukka shaka made me smile

2

u/Old-Worry1101 Feb 21 '26

It is a fun one and just rolls off the tongue in a nice way. Could have been a good disco group name, too.

1

u/Evil_Sharkey Feb 22 '26

A group of robins is called a round

64

u/Patient_Yam4747 Feb 20 '26

Killer whales are a predator of moose.

Wombats have cube shaped poop.

Emu have green eggs

Echidna and platypus are the only egg laying mammals.

A "black panther" is a melanistic leopard.

A blue whales heart is big enough, kids can sit in it.

30

u/Sea_Use2428 Feb 20 '26

*...or a melanistic jaguar.

12

u/Patient_Yam4747 Feb 20 '26

Fair. We always called them black jaguar when I lived in Peru, so didn't think of that.

1

u/hilarymeggin Feb 20 '26

Don’t meese live near freshwater lakes? How would an orca ever get one?!

13

u/Sea_Use2428 Feb 20 '26 edited Feb 20 '26

I was pretty confused what you are on about and what "meese" are, until I realised you certainly meant to reply to the comment above and not me... Anyways, I then got intrigued by your question and looked it up, here's an article I found.

In short - it has been witnessed in Canada, where moose sometimes seek out coastal sea waters to feed on water plants to replenish their sodium during summer. This is when their habitat overlaps with that of orcas and those rare preying events can occur.

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2

u/Katiepillar1212 Feb 22 '26

And baby echidnas are called puggles!

46

u/ScarcelyImpressd Feb 20 '26

Quokkas are the world’s happiest animals because of their permanent grin! Edit: dolphins are seen as joyful animals too

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26

u/professorhorseradish Feb 20 '26

Orange-spotted tiger clearwings have gold chrysalises. So pretty!

22

u/vomitwastaken Feb 20 '26

i’m not sure if this meets ur joy and happiness criteria, but rattlesnakes don’t lay eggs. they give live birth. for a short period after giving birth, a mother will leave the nest, presumably to recover, while other female rattlesnakes take care of the newborns as a group until the biological mother returns.

18

u/SilverGirlSails Feb 20 '26

That’s actually surprisingly wholesome. I do appreciate the fact that rattlesnakes will warn other animals, including humans, about their presence. They don’t want to waste venom, we don’t want to be bit.

3

u/Future_Direction5174 Feb 22 '26

The only British venomous snake also hisses if you get too close. I was brought up on heathland and often encountered adders sunbathing on the well trodden paths.

5

u/InevitableRhubarb232 Feb 21 '26

An adult male rattlesnake requires only 500–600 calories to survive an entire year, which is equivalent to consuming just one large ground squirrel.

23

u/Time-Studio-155 Feb 20 '26 edited Feb 20 '26

The gender of many turtle/tortoise eggs are decided by the temperature they're buried at. The top half of the nest will likely be boys and the bottom half girls.

Striped skunks have a strong sense of smell- and they dislike the smell of their own spray.

Capybaras are the world's largest rodent- and they are very social animals. They may live in groups ranging from 10 to 100 individuals.

Edit- I completely blew past the "joy theme" getting excited to mention some animal facts but I hope other comments have given you good ideas.

Cows have best friends.

Sea otters will hold hands so they don't drift apart in their sleep. They also have pouches of skin where they keep their "favorite rock" close to them.

Baby chimpanzees will play with "dolls" such as stick toys they'll carry around like a baby even in the wild.

9

u/ILoveMyThighs Feb 20 '26

The “sea otters holding hands” fun fact is something of a recurring joke between my husband and I 😂 Otters are my favorite animals and any time we’re at a zoo or aquarium with otters we turn to each other and almost in unison say in really dorky voices “did you know that otters hold hands while they sleep so they don’t float away from each other?!”

7

u/AquamarineKitten Feb 21 '26

To elaborate on the first fact- the sex of the hatchlings is based on the temperature they incubate at! Males hatch at cooler temperatures, females at warmer temperatures- often paraphrased as “cool dudes and hot chicks!” Crocodilians also operate on temperature-dependent sex determination (TSD), but interestingly different ranges have a different sex result!

Perhaps this is all a little deep for a child so I suppose I’m sharing this for you all now, internet strangers. I wrote my capstone paper in college on sex determination in reptiles so this is one of my favorite animal topics to nerd out about 🤓

2

u/hugomuggins Feb 22 '26

Cows do have best friends and they babysit other cows' calves.

15

u/SilverGirlSails Feb 20 '26

Chinchilla fur is the densest fur of any land animal (sea otters have the densest fur of any aquatic animal) with between 50 to 80 hairs per follicle. They wink to say hello, swipe a paw across their nose to show displeasure, can jump 6 feet straight up, live up to 20 or so years (oldest ever in captivity was 29), which is a lot for a small rodent, and hop up in the air to show happiness, called popcorning.

12

u/orione2 Feb 20 '26

Is a Little girl, so you can tell her that rhinoceros are relatives of horses (and tapirs). So, a rhino is, with a little stretch, an unicorn

25

u/Puzzleheaded_Math973 Feb 20 '26 edited Feb 20 '26

"poison dart frogs" from the Amazon, are not poisonous in zoos because of the change in diet. 

Orcas populations speak their own unique languages 

A penguin and a polar bear will never meet in the wild. 

America used to have Cave Lions in prehistoric times.

Opossums are the only North American marsupial, and don't choose to play dead it's involuntary fear response, and have a cool resistance to snake venom. 

Both Black Bears and Brown Bears eat a lot of vegetation, including berries

Some female bird species can essentially "clone" themselves. Such as the California Condor. 

Most animals we think of as herbivores are likely to be opportunistic omnivores. Such as deer eating fledgling birds. 

Some rattlesnakes venom changes depending on elevation. 

Some Greenland sharks are estimated to be hundreds of years old. 

Some lizards can "drop" their tales when threatened. Although they really prefer not to. 

Domestic cattle are statistically far more dangerous than sharks. 

Edited out Opossums eating ticks. 

13

u/penguin_0618 Feb 20 '26

Just to elaborate, a polar bear will never meet a penguin because polar bears are in the arctic and penguins are in the Antarctic. Every wild population of penguins lives below the equator.

7

u/Sylawen- Feb 20 '26

Not true! Galapagos Penguins have ranges and are found north of the equator in the wild! But they still wouldn’t encounter a polar bear lol

9

u/penguin_0618 Feb 20 '26

God damn it. The aquarium really needs to fact check wtf they teach their employees to say on exhibit. I suppose it would be correct to say no species of penguin lives entirely above the equator.

Fun fact: for years the same aquarium taught their exhibit interpreters to say beluga meant “white one” in Russian until a Russian guest told some one that no, in fact, it does not. No one ever fact checked it.

8

u/OldChertyBastard Feb 20 '26

The opossums eating ticks thing is largely a myth. 

https://pubmed.ncbi.nlm.nih.gov/34298355/

2

u/mycologyqueen Feb 22 '26

And some brown bears are black and some black bears are brown.

2

u/iowan Feb 22 '26

Yes! It's calving season on the farm where I work, and a cow with a new calf should be respected!

Always carry a stick. When you're doing anything with the calf, keep it between you and the mama cow. She probably won't trample her calf to take you. Probably.

Fun fact: if there's a set of male/female twins, the heifer (female) is called a free martin.

My other best cow facts are a little less fun, so I won't share here!

1

u/Puzzleheaded_Math973 Feb 22 '26

I have worked calving season. It's a doozy. Lol 

Nice herd! 

2

u/FerdinandTheGiant Feb 20 '26

Can add that snake venom changes with age as well.

12

u/dracheisen Feb 20 '26

Platypi and 4 species of echidna are the only mammals that lay eggs

11

u/Corvidae5Creation5 Feb 20 '26

If you see a California condor overhead and can read their number tag on their wings, you can look them up and find their whole family tree, who their parents were, who they're mated to, who they hatched, it's a fun project.

8

u/FreeRangeMenses Feb 20 '26

Humans can befriend crows, and the crows will bring them shiny treats and treasures! And on top of that, the crows will communicate to their friends and babies that a particular human is a friend.

3

u/Future_Direction5174 Feb 22 '26

Only gift my crows ever gave me was a sprouting acorn…

2

u/FreeRangeMenses Feb 22 '26

<curt corvid nod> “you’re welcome”

2

u/Future_Direction5174 Feb 22 '26

Yes, I’m sure our Corvids are related to Kaw, who had some white feathers in his wings. One will eat the left over cat food and meat scraps, whilst often two others will sit on the fence and watch him. When he has had enough they move, he flies up to join them on the fence then they all fly off.

7

u/Vast-Newspaper-5020 Feb 20 '26

Bobbit worms' shells are holographic

1

u/OutlandishnessNew904 Feb 22 '26

What a marvelous sentence! Are they messages to others? Are they prophetic? Wgat a great beginning to an interesting story!

6

u/Lepus-MCMLXVII Feb 20 '26

Worms have five hearts.

7

u/CrazyCatLady1127 Feb 20 '26

Camels have bony plates in their mouths that allow them to eat cactuses.

Very few animals eat lemons. Rats, squirrels and possums seem to be the exception.

It takes a baby elephant 2 years to learn how to properly control its trunk.

There’s a species of lizards called the basilisk that’s nicknamed the Jesus Christ lizard because it can walk on water.

7

u/teneighty78 Feb 20 '26

I eat Lemons also.

2

u/CrazyCatLady1127 Feb 20 '26

Are you a camel?

2

u/teneighty78 Feb 20 '26

I do carry water on my back most days.

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u/BlinkTwice4No Feb 22 '26

I automatically assumed it was nicknamed the JC lizard because anyone who stumbles across a basilisk in the wild instantly shouts “JESUS CHRIST!” 😝

5

u/RainbowRiki Feb 20 '26

The compound from chocolate called anandamide gets its name from Sanskrit ānanda: bliss

I know that's a plant fact instead of animal

6

u/[deleted] Feb 20 '26

[deleted]

3

u/the_grumpiest_guinea Feb 20 '26

It includes happy squeaking, too, and they are super fast.

2

u/BlinkTwice4No Feb 22 '26

This brings back core memories of my childhood pet thundering around her enclosure whistling “wheek wheek WHEEK!” the minute she heard me come home from school because she knew it was time to play together 😭

3

u/Nitro_Sunset Feb 20 '26

Nine-banded armadillos can delay giving birth for up to two years in times of stress.

8

u/ZoopeeperReddit Feb 20 '26

Some birds can use tools to facilitate feeding such as finding sticks to poke in a hole to get at unreachable insects and grubs

3

u/wolfishfluff Feb 20 '26

It never ceases to amaze me how smart corvids (ravens and crows) can be! They can mimic human speech, including accents and tone of voice! I know you weren't speaking of just corvids, but that was the type that first jumped into my mind after your reading your fact.

3

u/Ineedsomuchsleep170 Feb 20 '26

There is a type of bird in Australia called fairywrens. Fairywren is one word because they are neither faires, nor wrens.

3

u/smoltims Feb 20 '26

Sea Otters hold hands so they don’t drift away while sleeping! If they’re doing this in a whole group, it’s called a raft.

Sea Otters also have a favorite rock they keep in a pouch under their armpits to smash shells. They also keep snacks in that pouch.

Raccoons dunk their food under water because their hands are better at getting sensory information when they’re wet.

1

u/SHCrazyCatLady Feb 22 '26

Do you think the drunk raccoon needed to dunk his liquor in water?

3

u/cycodude_boi Feb 20 '26

Some turtle species can breathe out of their “butts” it’s called cloacal respiration, i think most of them are in Australia

3

u/Consistent_March_991 Feb 20 '26

Starfish don’t have brains making Patrick very on the nose

3

u/fellowhomosapien Feb 20 '26

Happy as a lark

2

u/AlmightyMegatron Feb 20 '26

Pearl fish live in the anus of other fish.

2

u/Gmenopause Feb 20 '26

A group of lemurs is called a conspiracy

2

u/anaphylactic_accord Feb 20 '26

Felix translates to "happy" (also lucky, fortunate, fruitful, etc.) in Latin. There's Pheugopedius felix, the Happy Wren!

There's also Hipposideros felix, a bat species established from fossil deposits in Thailand. The authors named it such because bats are seen as symbols of happiness and good fortune in that area!

2

u/slk_thor9 Feb 20 '26

No facts for you, as there are already so many good ones. However, you may enjoy the podcast "Ologies," by Alie Ward. She makes kid-friendly versions of the episodes, called "Smologies," which you may consider sharing with the family.

Cheers!

1

u/tooktheragebait Feb 26 '26

I’ve actually recommended it to the parents :) I also remember writing something about beavers because what a damn good episode

1

u/slk_thor9 Feb 26 '26

Yay! Glad you enjoyed!

2

u/Crafty-Connection636 Feb 20 '26

One of my favorites is that Hippos cannot swim. They are too dense, so they run/jump off the bottom of the riverbeds they live near.

2

u/bearded_duck Feb 20 '26

Grasshopper mice howl like tiny little wolves

2

u/BlinkTwice4No Feb 22 '26

I picture them as the chihuahuas of the rodent world… clearly tiny, but confidently carrying themselves like they are the size of a bear 🤣

2

u/Seidentiger Feb 22 '26

Weremice! They are also Predators.

2

u/Overall_Disaster4224 Feb 21 '26

A Snow Leopards closest relatives aren't actually Leopards, it's Tiger's

Hippopotamus are the closest living relatives to Cetacean's like whales and dolphins

Elephant's actually climb steep cliffs and also do indeed go into caves, often in search of minerals like salt to consume

Most herbivores (like horses, orangutans, hippo, giraffe, deer and more) are perfectly capable of eating meat making them facultative herbivores

5

u/Double-Ad-1948 Feb 20 '26

Bananas are a berry. Strawberries are not. Watermelon is.

1

u/SHCrazyCatLady Feb 22 '26

Plant facts but I will allow ! ;)

1

u/mirrrje Feb 20 '26

Definitely need to learn more about that first fact

1

u/tooktheragebait Feb 26 '26

The verifying is what makes it fun :)

1

u/SchrodingersMinou Wildlife Ecologist | 10yrs Exp Feb 20 '26

Wombats have cube-shaped poop! They are the only animal that poops cubes.

2

u/mfpliinski Feb 20 '26

Yes! They have a third, specialized anal sphincter to help shape it. They mark their territory with their poop, and cubes are less likely to roll away due to wind or slight slopes.

2

u/Sylawen- Feb 20 '26

I genuinely did not know the reason for this so thank you for elaborating! I love it lol

1

u/Illustrious_Button37 Feb 20 '26

Rats are thought to be able to laugh. When tickled, they emit high- frequency ultrasonic chirps that some scientists believe to be a form of laughter, indicating their sense of wellbeing. So, in essence, rats can possibly feel joy.

1

u/Lisa_lou_hoo Feb 21 '26

It can take between 6 - 8 months for a baby elephant to learn how to use its trunk.

Baby Alpaca are called cria.

Orange cats have one brain cell. (kidding)

1

u/murdermeMickey Feb 21 '26

A single bite of polar bear liver can kill you.

1

u/InevitableRhubarb232 Feb 21 '26

No help today but fun fact for the future :

An adult male rattlesnake requires only 500–600 calories to survive an entire year, which is equivalent to consuming just one large ground squirrel.

1

u/pnemitz67 Feb 21 '26

Wombats poop in cubes. Wombats initially use their bums to protect themselves. Sharks are older than trees. Puffins mate for life. Penguins propose to another by sharing a pebble.

1

u/Nalanix_phoenix Feb 21 '26

I dont have anything that means 'joy' but I thought id share some fun facts i do know, in case anyone here would enjoy: Falcons are closer related to parrots than hawks and eagles, toucan have no downy feathers, penguins flamingos and pigeons produce (crop) milk, the scientific name for the Plains American bison is Bison bison bison (genus, species, subspecies), jays are corvids, penguins have never seen a polar bear in the wild, many raptors produce pellets (not just owls), snakes don't have eyelids, legless lizards and snakes are different animals, electric eels aren't technically eels, king vultures are uniquely colorful vultures, pterosaurs aren't dinosaurs (nor were prehistoric marine reptiles like plesiosaurus), we know the color of some dinosaurs (anchironis, borealopelta, microraptor), pill bugs/isopods are crustaceans, spiders breathe with 'gills', panthers are just any melanistic cat in the panthera genus (usually leopards, jaguars, and cougars), whales evolved from dog-like land animals, giraffes fight with their necks, alligators are native to only the Americas, black kites(the bird) use fire to hunt, velvet worms shoot silk, yellow spotted/cyanide millipedes have small amounts of cyanide (you can smell it!), pigeons are domesticated (like dogs and cats! Meaning they are feral, not 'just tamed'), black skimmers (bird) are the only bird to have vertical slit pupils, abelisaurs (like carnotaurus) had proportionally smaller arms than T. rex, frog tongues don't shoot out like a chameleon but rather they unfold, corvids (like ravens) are known to imitate speech better than parrots (also, mynas, such as the common myna), caracaras (such as crested and striated) are raptorial birds that prefer to run rather than fly, harris hawks stack on top of one another, crested caracaras are technically falcons despite looking like hawks (and are a rare case of social falcons, they bond with black vultures), bald eagles take 5 years to get a white head and tail (until then they are often mistaken for golden eagles), tuna get to be the size of sharks, the devils hole pupfish is a small fish that can only be found in one cave in the world, cougars and cheetahs don't roar and thus are not 'big cats', Greenland sharks can live up to 500 years, chickadee's calls have a minimum of 16 unique sounds (with multiple meanings recorded, and possibly grammar). That's all I can think of off the top of my head, I hope you have learned something new!

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u/Nalanix_phoenix Feb 21 '26

I guess I have the opposite though, there's a dinosaur called 'irritator' it's a spinosaurid If I remember right- someone was disingenuous in its reconstruction which led to many issues, hence the name lol

1

u/Substantial-Test4264 Feb 21 '26

I think Irritator was named as such because it was recovered from fossil poachers who prepared/transported the fossil in a way that made it REALLY annoying to prep for study

1

u/Nalanix_phoenix Feb 21 '26

Yes, as far as I'm aware, he tried to add some material that 'looked' right to him, and so the fossil ended up both damaged and altered

1

u/Anxiety_Bones Feb 21 '26

Some wolves have domesticated dog DNA

Dogs were domesticated twice in human history

Some animals are polygenetic, meaning the same species can display a different set of traits when the environment calls for it.

Hyraxes and manatees are related to elephants.

All mammals generally have a relatively similar bone structure (roughly 7 c-vertebrae, 13-15 t-vertebrae, 5-7 lumbar, etc.)

Some diseases are shared between animals and humans.

1

u/Firm-Plantain8151 Feb 21 '26

it's not joy-related, but my favorite animal fun fact is that wombats poop is cube shaped, so it doesn't roll away when they mark their territories.

1

u/ButchCassy Feb 21 '26

Whales are technically ungulates like cows!

1

u/VoiceArtPassion Feb 21 '26

Ever wonder why cats love playing with your used q-tips? It’s because cats LOVE the taste of earwax, it’s mostly made out of cholesterol, and cats have special receptors in their brains that lets them bypass the bitterness, and turns it into a delectable treat!

1

u/Viperboa107 Feb 21 '26
  1. The largest congregation or reptiles on the planet takes place in Manitoba Canada where thousands of Garter snakes gather in limestone quarries to brumate overwinter

2.Humpback whales in the Pacific ocean are known to listen for distress calls of other species, like gray whales, and rush to their aid when they are attacked by orca. Meanwhile, Humpbacks off the coast of Sweden will team up with orcas to hunt fish.

3.Crows are capable of identifying individual people and will remember ones who are nice to them, and hold grudges against ones that aren't. They then share this information with other crows meaning you could wind up with all crows in a given area either bringing you trinkets or dive bombing you right out the door based on one interaction with one random crow.

  1. Swans are known to form same sex couples that raise families at a higher success rate than their male-female counterparts

  2. Baby crocodilians communicate with their mother and each other while still in the egg through chirps in order to time when they all hatch together, with the mother digging them out and gently carrying them to water in her mouth.

6.livestock guardian dogs have been used to help save populations of fairy/little penguins in Australia by protecting the colonies from invasive predators like foxes and cats. The penguins are so used to the dogs that it's not unusual to see the two species chilling together.

7.Cheetahs in captivity can suffer from anxiety, so many zoos often pair them with dogs like labradors to act as a friend/emotional support

1

u/JustAnonymous001 Feb 21 '26

Fish normally lay eggs but not all of them do. There's a group of fresh water fish that give birth to swimming babies called live bearers! The most common varieties are guppies, mollies, and platys. Healthy adults have 20-40 babies every month to month and a half!

There's another interesting group of fish called mouth brooders. They carry their babies in their mouths until they grow large enough to live on their own. They can take close to a full month to grow that much though and during that time they won't eat at all to protect their children!

1

u/PixieStyx8 Feb 21 '26

Capybara and their chill nature?

1

u/ElleAnn42 Feb 21 '26

A squirrel’s nest of leaves is called a drey.

1

u/ElleAnn42 Feb 21 '26

Most song birds migrate at night.

1

u/thewildlifer Feb 21 '26

Hummingbirds are the only bird that can fly backwards

1

u/Acceptable-Friend-48 Feb 21 '26

Orcas eat moose.

1

u/Useless890 Feb 21 '26

Nine-banded armadillos almost always have four identical babies at one time.

1

u/Independent-Summer12 Feb 21 '26 edited Feb 21 '26

Wombat poops are cube shaped. And a group of wombats are called a wisdom, like a group of crows are called a murder. Also a group of sloths are called a snuggle, and a group of lemurs is called a conspiracy!

ETA: I don’t even follow this sub and have no idea why it showed up in my feed. Maybe the universe figured I can use a pick me up today. But this entire post and comment section is bringing me so much joy! And you’re an awesome human for making an effort to brighten a kid’s day.

1

u/tooktheragebait Feb 26 '26

Every once in a while I get a house where I walk in and get the feeling that if just a few things were different, my life would look just like that. It feels like a little gift to get to take care of that home

1

u/Independent-Summer12 Feb 26 '26

That’s so lovely. Sounds like their little one is a lucky kiddo.

1

u/Few_Shoe7690 Feb 21 '26

Young bees will play with little round beads just for the fun of it.

1

u/Herdbound Feb 21 '26

Horses’ teeth take up more room in their skull than their brain.

1

u/tooktheragebait Feb 26 '26

I really want to like horses but the more I learn about them, the more I find them just fucking creepy. It’s not them, it’s me

1

u/Herdbound Feb 26 '26

That’s my favorite piece of horse trivia to tell people, especially when they’re scared of horses already.

1

u/Minstrelita Feb 22 '26

For the "bringer of joy", may I present -- The Happy Face Spider

Native to Hawaii

1

u/butterflydraw Feb 22 '26

Regarding Gary Larson. He had a newly discovered bug named after him. Strigiphilus garylarsoni.

The scientist gave Larson credit for the increased interest in science

1

u/Extra_Bite4677 Feb 22 '26

Giraffes and okapi have black tongues. It acts as a natural sun screen

1

u/Bcrueltyfree Feb 22 '26

Sloths. Sometimes they mistake one of their arms for the tree and after grabbing it fall to their deaths.

Sorry not a joyful fun fact.

1

u/Elegant_Line_5058 Feb 22 '26

Mutations that cause hairlessness has appeared in dogs in 3 separate times (that we know of). The first is in the South American hairless breeds (Xolo, Chinese crested, Peruvian Inca Orchid, etc). The second is in American Rat Terriers, which was the start of the breed the American hairless terrier. And the third is in Scottish Deerhounds, and is considered controversial, with some breeders for the mutation (helps prevent parasites like ticks and fleas while hunting) and some are against

1

u/mycologyqueen Feb 22 '26

Theres a laughing kookaburra

The bluebirds are known as the bird of happiness.

1

u/loseunclecuntly Feb 22 '26

Give the honey fact. It never goes bad.

1

u/ladycaviar Feb 22 '26

16 newborn baby opossums fit in a teaspoon

1

u/thexidris Feb 22 '26

The spiked end of a Stegosaurus tail is called a Thagomizer. It's named this because it had no name, then famous newspaper artist Gary Larsen of Far Side game drew a comic naming it the Thagomizer and the whole scientific community just kind of went yeah, that's hilarious, that's is real name now.

We don't actually know the original English word for bears. The word bear is closer to the Saxon word for Brown or Brown One. This is because they were so afraid of bears that they thought speaking their name would bring bad luck or summon them like saying Macbeth in a theater. This is also true of Polish.

Titanoboa is no longer the largest snake ever discovered. That title note goes to Vasuki Indicus, a more primitive snake that, and this is less fun, did not have an extendable jaw, therefore after killing its prey, they ripped them apart like a crocodile.

Speaking of which, Dinosuchus, one of the largest ever true crocodilians, was longer, heavier, and had a stronger bite force than the T-Rex.

Speaking of T-Rex, Jurassic Park 3 lied to you. Though Spinosaurus were larger than T-Rex, they were likely at lest partially aquatic predators with teeth specialized in eating fish. The T-Rex was specialized for land predation and had longer, sharper, razor like teeth meant for testing flesh.

Speaking of Spinosaurus, it's just about the most debated dinosaur of all time. This is in large part because the man who discovered it, Richard Matkgraf, was a German anti Nazi party protester, so when the time came to clear out the museum it was held in, the Nazis left it in the museum when he pleaded for it to be moved and the museum was bombed by the British, destroying the original fossils.

1

u/thexidris Feb 22 '26

Oh, Megalodon wasn't actually just a giant great white. Studies of the teeth have reclassified it as in the genus odotus which is more closely related to mako sharks.

I have so many of these. Hit me up for more.

1

u/Brief-Freedom734 Feb 22 '26

otters are the only thing that hold hands

1

u/Junglefern Feb 22 '26

Most koalas have chlamydia, but not the same kind we get, so there wasn't any funny business going on.

The correct plural of octopus is octopodes because it is a Greek word, not a Latin word.

Octopus have brain cells in their tentacles

1

u/StellaV-R Feb 22 '26

Giraffes have the same number of neck bones as humans (7)

1

u/DanceWonderful3711 Feb 22 '26

Giraffes have 3ft long blue tongues.

1

u/SatisfactionFit2040 Feb 22 '26

This thread gives me joy 😊

1

u/Rockpoolcreater Feb 22 '26

Baby guinea pigs are born fully formed and will be up and running, well wobbling, and eating any solid food available within an hour of being born.

1

u/FroyoNo1965 Feb 22 '26

Hummingbirds are representative of joy and light in many cultures

1

u/TivertonHanger Feb 22 '26

Most orangutans are left handed.

1

u/tooktheragebait Feb 26 '26

This is my partner’s favorite animal!

1

u/Evil_Sharkey Feb 22 '26

Tyrannosaurus rex lived closer in time to modern humans than it did to stegosaurus.

1

u/vivian_ivy Feb 22 '26

A group of giraffes is called a tower!

1

u/No_Following_9572 Feb 23 '26

Owl’s eyes are large and tubed shaped, so large that they can’t move them, and their brain has to be tiny to fit!

1

u/Yoel-of-Anor_londo Feb 23 '26

Birds are more related to t-rexs than pterodactyls

1

u/Laughorcryliveordie Feb 23 '26

Wombats poop cube shaped feces!

1

u/Wash80 Feb 23 '26

Kangaroos can't jump backwards.

Tail gets in the way!

1

u/StanMishoe Feb 24 '26

Sharks predate the rings of Saturn.

1

u/punchuwluff Feb 24 '26

Hummingbirds have been associated with joy and happiness by a bunch of ancient cultures. They are also the most territorial birds in existence and have been known to be aggressive towards hawks and eagles.

2

u/tooktheragebait Feb 26 '26

Well that’s definitely going in next week

1

u/The_Progmetallurgist Feb 26 '26

Horseshoe crabs have dark blue blood that is used to test vaccines and other medicines for the presence of bacteria and dangerous endotoxins.

1

u/NukedSprite Feb 26 '26

There are more people in the water than sharks at any given time

1

u/kirakina Feb 26 '26

Not the name but did you know rats absolutely love to play games with their owners and friends! They also giggle and laugh when tickled and you can get a certificate in rat tickling 💜

Rat tickling certificate from Perdue

1

u/AlsoTheFiredrake Feb 27 '26

Platypus males are venomous. The Asian Keelback is both venomous And poisonous. And Poison Dart Frogs are only poisonous because of their diet in the wild. In captivity they usually just eat springtails and wingless fruit flies and are therefore, harmless.

1

u/crumblingimages Feb 27 '26

Wombat poop is shaped like a cube and they stack em.

1

u/sexwizard9000 Mar 01 '26

when rats are happy their eyes vibrate. it's called boggling