Fat-tailed Gerbil

The fat-tailed gerbil is a medium-sized gerbil. Its body length is about 10 cm (3.9 in), with a tail length of about 5 cm (2.0 in). The hair at the back and the head is yellow-coloured, with a dark grey base and a small black tip. The belly is white. Fat-tailed gerbils weigh between 22 and 45 grams (0.78 and 1.59 oz) in the wild, but in captivity can weigh between 55 and 82 grams (1.9 and 2.9 oz). Their body is round and somewhat flattened. They have no clear neck and a very sharp face, with large oval-shaped black eyes. They look similar to a dwarf hamster, but unlike a hamster they have a pointed snout and a fat, almost bald, club-shaped tail. The fat-tailed gerbil stores fat in its tail in the same way that the camel stores fat in its hump. Captive specimens of the fat-tailed gerbil have an average life span of between 2 and 4 years.

The French zoologist Fernand Lataste first described P. duprasi in 1880 in Laghouat, Algeria in Le Naturaliste. Fat-tailed gerbils are native to the Northern Sahara (northwestern Egypt, Libya, Tunisia, and Algeria). There they live in sparsely vegetated sand sheets or rocky deserts. In the wild, fat-tailed gerbils live in simple burrows about one meter deep, in hard sandy soil. They may also occupy other species' burrows.

Fat-tailed gerbils are mostly insectivorous in the wild, but will eat also a variety of plants. In captivity, they are kept on a basic rodent mix, and are fond of mealworms, crickets, moths, and almost any other insect, even beetles. They can also be given some vegetables and fruit, like carrots, cauliflower, chicory, and apples.