02/05/2009 05:12 am ET | Updated May 25, 2011

Pink Iguana That Darwin Missed Holds Evolutionary Surprise

For iguanas, it turns out that it's not easy being pink, either.

Biologists report that a rare type of pink iguana found on a single volcano in the Galapagos Islands is a genetically-distinct species from its green cousins -- and that it's probably critically endangered.

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