Big hamsters should have a minimum of 800 square inches of floor space, and dwarf hamsters should have at least 640. You can also DIY with a 75-gallon (or larger) aquarium fitted with a mesh lid.

Squeak. From down the hall, I can hardly hear myself gasp for oxygen, the way I usually do all night long. “I already oiled it,” Posh explained with a shrug. Apparently, hamster wheels are ...