Mongolian gerbil Mongolian gerbil Meriones unguiculatus, the Mongolian gerbil or Mongolian jird, is a small rodent belonging to the subfamily Gerbillinae. It is the most widely known species of the gerbil subfamily, and is the most commonly kept as a small house pet or experimental animal. Under those conditions, it is known as the domesticated gerbil. Like the Syrian or golden hamster, it was first brought to the United States in 1954 by Dr. Victor Schwentker for use in scientific research. Forty-four pairs were caught in Mongolia and brought to England. They were described as having "squirrel colors... with long furry tails."
Guinean gerbil well-haired and bicoloured, being dark above and pale beneath, with a tuft of long dark hairs at the tip. The Guinean gerbil is nocturnal. It excavates a fairly complex burrow system that goes as deep as . The average size of the home range of the Guinean gerbil is . Little is known about the animal's diet. In western Senegal, breeding takes place in the wet season and continues into the dry season. Litter sizes average four or five. Guinean gerbil The Guinean gerbil ("Gerbilliscus guineae") is a species of gerbil found in Burkina Faso, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory