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Platypus glow a strange green under UV light



Duck platypus, laying eggs platypus just a little weird: It turns out their feathers glow green and blue below ultraviolet ray (UV) light.

Under visible light, platypus’ extremely dense fur – which insulates and protects them in cold water – is gray-brown, so holographic light is exposed under the upper UV rays. A specimen in a stuffed museum is a big surprise.


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