11. The Great Tit
Sorry, this isn’t what you think. The Great Tit is a bird, and it’s a very intelligent and evolved bird. Whereas humans spent thousands of years developing stuff like indoor plumbing and flushing toilets, the Great Tit developed its own waste disposal solution. In order to avoid dirtying her nest, a Great Tit will eject her waste products in an enclosed sac. Yep, it just comes out of her body all tidy like that. Later, when she feels like it, she’ll carry her sac of poo down to the ground and dispose of it. It’s like a chamber pot without the smell or spillage issues, which is pretty smart of the Great Tit. Let’s all say that again. Great Tit.