Tiny Fossil Illuminates Penguin’s Surprisingly Useful Wings and How They Evolved

Sometimes, certain aspects of an animal’s biology can seem completely redundant, such as the tiny arms of a T. rex, or wings on a flightless bird. But thanks to a recent study of fossilized penguin wings, researchers were able to pinpoint when these birds had turned their seemingly pointless wings into powerful diving aides. A joint […]

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