Sure, everyone's gone "WTF" over the platypus, but what about its even weirder cousin the
echidna (also known more descriptively as the spiny anteater)? Together, they are the only surviving examples of the oldest mammals ever to exist, the monotremes. Monotremes have fur, and some of them sometimes have pouches in which their young develop, but
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They're awesome.
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Koalas have forked penises actually. And two thumbs. weird.
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Does it have thumbs on its back paws too? I've wondered if more than one thumb per hand would make life easier, but you'd need corresponding brain parts to keep track of all that grasping and pretty soon it adds up to evolutionary expense.
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