22 noviembre, 2012

Birds first evolved wings for warmth rather than flight, new findings suggest


Breaking News:






Feathers were initially developed to keep birds warm and not for flying, a new study has claimed. 
Researchers found feathers on prehistoric dinosaurs, which later evolved into birds, were arranged in multiple layers to act as insulation and preserve heat.

The study from the Universities of Bristol, Yale and Calgary found that prehistoric birds had a very primitive version of wings, and it was not until millions of years later that they began to evolve for display and camouflage, and then finally to allow the dinosaurs to fly.


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