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“The scientists provided genetic evidence that what was once thought to be one widely dispersed species is actually four separate species of gentoo penguin. One of these was previously unrecognized because, except for slight differences in size and vocalization, it looks like every other gentoo: a white underside and black back, which are optimal for escaping predation while enabling prey capture in an ocean environment. Yet it is clearly genetically different — what scientists refer to as a cryptic species.
“The researchers also concluded that three previously recognized subspecies of gentoo penguins are genetically distinct and should be elevated to full-fledged species status.”
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