Why do hamsters run around in those crazy wheel things?

To keep themselves fit and bored free.

They are chasing rainbows.

because they are so active

i don't know why may be its their exercise or some thing

they are all republicans, and bush told them to do it. they are forking SHEEP!

That's their exercise regimen...!!!

My theory is they think they are going some where =D and trying to escape the cage!

to keep us from sleeping...

because they have no sense much like children and the elderly

ok my solutions: a million. hamsters interior the wild make burrows so him taking the cotton balls and amking a nest COMPLETLY accepted. 2 him mountaineering on the ideas-blowing of the cage and doing that element with the wheel is accepted too. My hamster likes to make a nest interior the little hut element i've got been given him. You hamter is in simple terms having exciting.