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For decades, scientists have known that platypuses and echidnas – Australia’s unique egg-laying mammals – have another developmental quirk: they don’t use the same genetic toolkit as other mammals to develop male and female embryos.

What’s more, just how they do it has been a mystery….

Whether it’s to escape environmental collapse or to explore new, unknown territories, the drive to establish human colonies in places other than on Earth has been gaining momentum in recent years.

And while proposed bases on the Moon or Mars might get all the headlines, there’s another equally…