Why Echidnas Are Evolutionary Misfits
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SciShow is supported by Squarespace. Whether you need a domain, website, or online store, make it with Squarespace [♩INTRO ] It’s pretty well known that Australia is home to some strange animals — everything from giant spiders to birds that can mimic chainsaws. And most of them follow familiar patterns in biology… except a tiny order called Monotremata, with only two subgroups: the echidnas and the platypus. Monotremes are mammals, so they have mammary glands and milk, they’re covered in hair, and they can heat up their bodies. But monotremes also lay eggs. In fact, they have a bunch of weird adaptations, and many scientists think that they branched off from other mammals, a long long time ago, like 200 million years ago. So by taking a closer look ...
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SciShow is supported by Squarespace. Whether you need a domain, website, or online store, make it with Squarespace [♩INTRO ] It’s pretty well known that Australia is home to some strange animals — everything from giant spiders to birds that can mimic chainsaws. And most of them follow familiar patterns in biology… except a tiny order called Monotremata, with only two subgroups: the echidnas and the platypus. Monotremes are mammals, so they have mammary glands and milk, they’re covered in hair, and they can heat up their bodies. But monotremes also lay eggs. In fact, they have a bunch of weird adaptations, and many scientists think that they branched off from other mammals, a long long time ago, like 200 million years ago. So by taking a closer look ...
