Thursday, December 8, 2011

BBC News - Science & Environment: How penguins 'time' a deep dive

BBC News - Science & Environment
The latest stories from the Science & Environment section of the BBC News web site.
How penguins 'time' a deep dive
Dec 8th 2011, 07:41

Emperor penguins time their dives by the number of times they can manage to flap their wings to propel themselves forward, say scientists.
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