Rat

A group of rats is called a mischief, and once you learn what these clever, social, surprisingly athletic rodents are…

Guinea pig

Domesticated for over 3,000 years and still one of the world's most popular pets, the humble cavy hides a surprisingly…

Gerbil

These small rodents store fat in club-shaped tails, wage deadly territorial battles, and once convinced a 19th-century missionary he had…