How Dinosaurs Got Their Wings

October 1, 2014 8:59 PM

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How Dinosaurs Got Their Wings

The link between dinosaurs and birds is widely accepted, but exactly how the prehistoric animals evolved flight is still being settled. The answer, however, may lie in the wrists, according to a new study published Tuesday in the journal PLOS Biology.

A reduction in the number of wrist bones over millions of years may explain how straight dinosaur wrists became hyperflexible bird wings, researchers in Chile have found. “Some bones fused, other bones disappeared, and one bone disappeared and then reappeared in evolution,” Alexander Vargas, a biolo...

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