Wombats are and territorial given how adorable they look. They will fight to defend their burrows and offspring, a feat especially important considering they reproduce only . Some species of wombats (called mobs) but still remain territorial towards outsiders, and they mark their territory with their . Wombats mostly eat grass, which is fairly difficult to digest, so they have (up to 13 metres!) to ensure they get adequate nutrients from their food. Their cubic poop is a . As their fecal matter travels through their intestines, it becomes so dried out that it holds whatever shape it is put into, and it just happens to be square.