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Roj47

Early Bird Used Four Wings to Fly

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The earliest known bird had flight feathers on its legs that allowed it to use its hindlimbs as an extra pair of wings, a new study finds.

The finding, detailed in the current issue of the journal Paleobiology, supports the theory that early birds learned to glide and parachute from trees before achieving full-fledged flight.

"This paper puts forward some of the strongest evidence yet that birds descended from arboreal parachuters and gliders, similar to flying squirrels," said study author Nick Longrich, a doctoral student a the University of Calgary in Canada.

http://www.livescience.com/animalworld/060...eryx_wings.html

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Never thought about birds slowly evolving. This is really interesting. Thanks for sharing.

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