why do they do that?

i dont undertand how almost all small domesticated mammals are born with an understanding of what the running wheel is for and how to use it.

more importantly what was the output and estimated 0-60?

lol we used to have a gerbil just like that at work... used to go crazy on it then just stop and do several rotations. seemed to enjoy it tho, kept on getting back on and doing the same. damn i miss that gerbil....

that guy should have it rigged up to a small electric motor used as a dynamo linked to a voltmeter, see how much he can generate