Wombats have buns of steel – and they might literally be deadly

If you know anything of the wombat, it's probably that the Australian marsupials poop in cubes (because okay, that’s pretty memorable). But listen up: the butts that produce those fecal oddities are pretty dang interesting in their own right.

Wombats are epic burrowers. Their warrens can be 10 feet deep, 16 feet long, and include up to 50 entrances. What’s more, a wombat may use up to 10 different burrows within its home range. With all that subterranean infrastructure, the wombat would much prefer to duck inside a hole than stand and fight with a dingo. The only catch is wombats are kind of chubby, weighing up to 80 pounds, which means those burrows have to be sort of large.