Wind tunnel helps show how birds fly so far without water
Friday, September 9, 2011 - 19:30
in Biology & Nature
Canadian scientists, using a state-of-the art device, discover that long-distance migrators burn muscle and organs instead of fat.Twice a year, bar-tailed godwits migrate more than 7,000 miles so they can spend their summers in Alaska and their winters in New Zealand. Bar-headed geese fly about 2,000 miles between Mongolia and India, traveling at altitudes high enough to clear the top of Mt. Everest.