Its large eyes are positioned one on each side of its head to help it see what is approaching on both sides as well as in front and behind. To see even more of its surroundings, a gerbil will stand on its powerful hind legs. These powerful legs also help the gerbil jump considerable distances. To help maintain its balance when it jumps or stands on its hind legs, the gerbil has a long, furred tail. The end of the tail sports a tuft of fur that is usually a different color than the gerbil's body color.
Some scientists speculate that the tuft is meant to confuse a predator.
If a predator grabs the gerbil's tail, the tip will come off as a lizard's tail does. Unfortunately, unlike a lizard, the gerbil's tail won't grow back. The cheek pouch-filling technique which earned the hamster its name is only one of several traits that makes the hamster an enjoyable, delightful pet. They are fun to watch as they go about their daily routine, and have a curious and inquisitive nature. Because they don't require much attention and can be left alone for short periods of time, they are easy to keep.