By Douglas Main, LiveScience Contributor | January 13, 2014 03:54pm
In the 1980s, the black robin was on the brink of extinction, having been reduced to just a single breeding pair by predation from cats and rats introduced to the islands where they live, southeast of New Zealand. To save the species, scientists encouraged the pair and their offspring to mate as much as possible, and even lent a hand to move eggs laid on the edges of nests, where they wouldn't hatch, into the middle of the nest, where they would.
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