Asymmetrical fossil feathers fill in timeline of flight

To get off the ground and evolve into flying birds, dinosaurs got a lift from asymmetrical feathers, which are more aerodynamic than symmetrical feathers. The discovery of a new species of asymmetrically feathered dinosaur in northeastern China from the Early Cretaceous is helping fill in the timeline of adaptations that led to flight.

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Mary Caperton Morton

Mary Caperton Morton

Morton (https://theblondecoyote.com/) is a freelance science and travel writer based in Big Sky, Mont., and an EARTH roving correspondent.  

Tuesday, August 29, 2017 - 06:00