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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgugXbwn5KFzE9gb_b5872QOHiGzPn2BeVFJH2TRv0ZjOc-3ZPt8SjC0L-Ra4nsULWU2-ZVOLj5JPAd2AlKq3_i5moJ3SZrt_WPhvK3X7OvtakaFXRHC1pyl7exZaQNr5CePOCbtB5Ra7Jf/s400/bh_goose.jpg)
No comments:
Post a Comment