Whooping crane eggs: one or two?

A University of Alberta scientist says removing an egg from an endangered whooping crane's nest increases the species chances of survival.

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<p><a href="http://www.physorg.com/news8381.html">Whooping crane eggs: one or two?</a></p> <p>A University of Alberta scientist says removing an egg from an endangered whooping crane's nest increases the species chances of survival. </p>