The duck-billed platypus is simply inexplicable. You may know that it's the world's only mammal that lays eggs instead of birthing live young. You may know that it has a beaver-like tail and a duck-like bill instead of teeth. You may even know that it sweats milk and glows luminously under UV light.

But we're guessing you didn't know that male platypuses have venomous spurs attached to their hind legs. The venom is non-lethal, but unless you enjoy 'excruciating pain that cannot be relieved with conventional painkillers', maybe stay out of their way.

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These cute and cuddly animals are actually extremely dangerous