The explosive physics of pooping penguins: they can shoot poo over four feet

Nature is a brutal place, so during brooding, chinstrap and Adélie penguins are reluctant to leave their eggs unguarded in the nest—even to relieve themselves. But one also does not wish to sully the nest with feces. So instead, a brooding penguin will hunker down, point its rear end away from the nest, lift its tail, and let fly a projectile of poo—thereby ensuring both the safety of the eggs and the cleanliness of the nest.