鮮果日誌櫻桃季

2012年7月1日 星期日

BBC News - Home: Highest-flying bird put to test

BBC News - Home
The latest stories from the Home section of the BBC News web site.
thumbnail Highest-flying bird put to test
Jul 1st 2012, 09:49

One of the world's highest-flying birds is filmed in a wind tunnel to see how it has adapted to fly at high altitude.

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