The main purpose of cage bedding is to absorb waste and control odor, but it also makes for comfortable sleeping material and an attractive background to show off the animals. (petbusiness.com)
«They use it as cage bedding, and the bunnies nibble on it, too.» (petproductnews.com)
Previous research had shown that female laboratory mice often return to a place where they have come across cage bedding soiled by males. (sciencemag.org)