the changes in the muscle cells probably evolved over a long period of time, perhaps as the Himalayas, one of the Earth’s youngest mountain chains, grew and the birds would have had to fly higher and higher.- from report about a paper by Graham R. Scott et al on how bar-headed geese fly at 9,000m or 30,000 feet over Himalaya.
31 July 2009
Evolving with a mountain
Posted by Caspar Henderson at 10:48
Subscribe to: Post Comments (Atom)
Post a Comment