Ick! Why is my guinea pig eating his poop?
Copraphagy is a practice where an animal will actually eat its own droppings. Every now and then, a guinea pig’s digestive system will produce a caecal pellet that holds a lot of the nutrients from food, resulting in a small “poo vitamin.” Guinea pigs will typically rear up on their hind legs and grab this pellet in their mouth. This can be compared somewhat with, say, a cow chewing its cud.
