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When birds lose the ability to fly, their bodies change faster than their feathers, scientists discover
But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a study in the ... long ago different species of flightless birds branched off from ...
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When birds lose the ability to fly, their bodies change faster than their feathers
They found that when birds evolve from a flying ancestor to a new flightless ... including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution, researchers compared ...