Researchers identify a new gentoo penguin species on remote Kerguelen Islands
A team of scientists has classified a previously unknown gentoo penguin population on the Kerguelen Islands as a distinct species, the first new penguin species named in over a century.
An international research group led by scientists from Chile and the University of California, Berkeley, used whole-genome sequencing to show that gentoo penguins consist of four distinct species, including a newly recognized southeastern gentoo on the Kerguelen Islands. Though morphologically similar to other gentoos, this cryptic species, Pygoscelis kerguelensis, is genetically distinct. Climate projections suggest that rising sea temperatures may eliminate viable breeding grounds for the island-bound lineages by 2050, while the Antarctic gentoo could expand its range.
The genomic data also uncovered lineage-specific adaptations, such as genes for heat production in the Antarctic form and enhanced diving capacity in the eastern form. The authors stress the need for multinational conservation measures to protect the vulnerable sub-Antarctic populations. The findings were published in Communications Biology.
Why it matters
Identifying a new penguin species reshapes taxonomy and highlights urgent climate threats to isolated wildlife.
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