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How birds got their wings

Fossil data show scaling of limbs altered as birds originated from dinosaurs
Tue, 2013-09-17 12:48

Birds originated from a group of small, meat-eating theropod dinosaurs called maniraptorans sometime around 150 million years ago. Recent findings from around the world show that many maniraptorans were very bird-like, with feathers, hollow bones, small body sizes and high metabolic rates. 

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