Geese fly over the Himalayas like a roller coaster

16 January 2015
Presented by Khalil Thirlaway.

Bar-headed geese reach altitudes of several thousand meters in their annual migration across the world's highest mountain range. A new study shows that they have a peculiar way to save energy on this long journey, as Khalil Thirlaway finds out from Dr. Charles Bishop of Bangor University...

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