Here are the gerbils I've been referring to. It's two girls. The cover is very heavy, and they are not able to escape. The food is on the right. If you have better ideas or suggest I get a dish, then write below about it. They love hanging out together. Today, they enjoyed flinging their bedding all over the place and making tunnels while "Mommy" unpacked the classroom. The one with the white lets me touch her, and the solid gray is not as personable yet. The one with the white, however, seems lazy while the gray one made the deepest and best tunnel. The solid gray one is also very protective and seems more "mature", if that makes sense. The one with the white enjoyed sleeping a lot of the time and basking in her new deep "bed". She's also the one who goes around trying to eat the bedding.