The fact that the animal has five X and five Y chromosomes is "the weirdest thing about a very weird animal," said Ewan Birney, a co-author on the paper, based at the European Bioinformatics Institute, near Cambridge. "In theory it means there are 25 possible sexes, though in practice that doesn't happen."

Great clip!

About a month ago I was researching monotremes. The platypus together with the four species of echidna are the only mammals that lay eggs.

And if I remember right, the male platypus has 4 penises.

that is no way to talk about our vice president, even if it is true.

You learn something new everyday... great clip... thanks

Australia: home of the world's weirdest and most deadly animals.