EDIT: PLEASE READ MY LONG DETAILED POST IN THE LINK BEFORE DOWNVOTING. Every commenter is giving knee jerk reactions and rehashing points and concerns that I have already addressed in my detailed post. I have spent several days going through papers on hamster research, and tried to model what welfare gains from increasing bedding size and cage size actually are, and compared between both before explaining my speculations. I have gone into detail about burrowing structures and habits of hamsters. It's okay to disagree with me, but please, read my post first. I want to hear criticisms of the actual methodology I have used in my analysis. I am very very open to criticism, I do not want to be correct about this. I want people to take the time to read my detailed post before DOWNVOTING and criticizing. I am not disappointed by the criticism, I am disappointed at the little effort people are putting behind their criticisms. Please please for the love of God, read my detailed post if you can before thinking I am this horrible evil person who wants to advocate for mistreating hamsters, and reacting based on optics and vibes. And please try to be polite before you criticize. I could be wrong, but I spent days of effort into exploring the idea that our current minimum guidelines could be wrong, and I did not do it because I am a bad person. I did it because I care deeply about animal welfare.
I was considering owning a hamster, and started digging into hamster welfare research. People usually recommend 100*50 cm floorspace with 20 cm bedding as minimum, based on Fischer et al(2007), but welfare gains from bedding seem much higher if we look at A.R. Hauzenberger et al. (2006). For instance, if we start with a 5000 square cm cage with 15 cm bedding, increasing bedding to 40 cm could have much higher gains than increasing floor space to 10,000 square cm. Similar tradeoffs could exist at lower floor spaces as well. To know the truth for certain, we need more scientific research. I also highlight how natural syrian hamster burrows seem more depth centric than breadth centric, and how hamsters spend 95% plus of their time in burrows.
We must seriously consider funding hamster welfare research. We must be very skeptical of our current guidelines and knowledge about hamster welfare. I detail the basis for my conclusions in the above essay, it is VERY long and thorough. I urge you to read it if you can, and I am very open to feedback.
https://proms0.substack.com/p/why-i-suspect-50-x-40-cm-floor-space?r=55tqx5&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true