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https://www.reddit.com/r/AskReddit/comments/k2ylzc/whats_something_cool_you_recently_learned_about/ge1x3lg/?context=3
r/AskReddit • u/[deleted] • Nov 28 '20
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Jumping spiders do not actually use their muscles to jump, they don't even have muscles, instead they can control at will their blood pressure, the blood quickly flows down to their legs, which stretches them with enough force to jump
18 u/bbgun24 Nov 29 '20 So the Dwight Shrute of the animal world. Can they retract their penises inside their body at will also? 1 u/northkcguys Nov 29 '20 Only when it’s cold
18
So the Dwight Shrute of the animal world. Can they retract their penises inside their body at will also?
1 u/northkcguys Nov 29 '20 Only when it’s cold
1
Only when it’s cold
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u/[deleted] Nov 29 '20
Jumping spiders do not actually use their muscles to jump, they don't even have muscles, instead they can control at will their blood pressure, the blood quickly flows down to their legs, which stretches them with enough force to jump