Guinea pig

The domesticated guinea pig is a small, furry rodent originally from South America. These social animals are known for their constant need to chew, which keeps their ever-growing front teeth in check. They’re easily startled by loud noises, often freezing or darting away when spooked.

• Weighs between 700 and 1,200 grams.
• Grows 20 to 25 centimeters long.
• Teeth never stop growing, so they chew often.