Shoulder ligament a linchpin in the evolution of flight

Brown and Harvard scientists have learned that a single ligament at the shoulder joint stabilizes the wings of birds during flight. In an advanced online publication of Nature, they explain how this tough bit of tissue evolved to become a linchpin for today's fliers.

If you want to include this story in your blog, copy and paste this formatted text:

<p><a href="http://www.physorg.com/news85667395.html">Shoulder ligament a linchpin in the evolution of flight</a></p> <p>Brown and Harvard scientists have learned that a single ligament at the shoulder joint stabilizes the wings of birds during flight. In an advanced online publication of <i>Nature</i>, they explain how this tough bit of tissue evolved to become a linchpin for today's fliers.</p>