7. Gerbils are always active and always a pleasure to watch
Gerbils are frantic movers and diggers. Out in the wild, they constantly dig around, create new tunnels and run through them. A gerbil tank filled with soil, then, can give gerbils endless hours of fun. Children delight in watching them. My gerbils can spend hours upon hours chewing, digging, tunneling and running, and they can boost my mood in no time.