Your gerbil will hoard food for later. They often bury food in the nooks and crannies of their cage or under the shredded paper on the floor, but they won't remember where it is after a few hours.

The gerbil population swings markedly from year to year, ... For example, a species of migratory bird called wheat-ear nests in the gerbils’ burrows and could plague-ridden fleas, he suggests.

You will never look at your pet gerbil the same way again. — -- Historians have long blamed rats for spreading the plague in Europe nicknamed the "Black Death" in the 14th century, but new ...

Gerbils are a beloved classroom pet, but they might also be deadly killers. A study now claims that gerbils helped bring bubonic plague to Medieval Europe and contributed to the deaths of millions.