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New Penguin Species Discovered After Century of Debate
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Firstpost•30-09-2026, 10:12
New Penguin Species Discovered After Century of Debate
- •A genetic study in Communications Biology identifies four gentoo penguin species, including a newly named one, Pygoscelis kerguelensis, the southeastern gentoo.
- •The southeastern gentoo, a cryptic species, lives on the remote Kerguelen Islands (Desolation Islands) and possibly Heard Island, marking the first new penguin species described since 1921.
- •Researchers sequenced genomes from 64 penguins across 10 colonies, revealing genetic distinctions and local adaptations among the four species, which diverged 300,000 to 500,000 years ago.
- •Climate models predict significant habitat loss for island-dwelling gentoos by 2050 under moderate warming, while the southern gentoo's range may expand into Antarctica.
- •Conservationists are urged to recognize and protect the three threatened sub-Antarctic gentoo species from climate change, predation, commercial fishing, and habitat destruction.
Key Questions Answered
The newly identified penguin species is the southeastern gentoo, scientifically named Pygoscelis kerguelensis, which lives on the remote Kerguelen Islands, also known as the Desolation Islands, in the southern Indian Ocean and likely on nearby Heard Island.
A genetic study published in Communications Biology concludes that gentoo penguins comprise four distinct species rather than a single species, raising three former subspecies to species level alongside the newly named southeastern gentoo.
The Antarctic Polar Front, which is a boundary in the Southern Ocean with sharply changing temperature and salinity, helped keep the different gentoo groups apart as they adapted to local island conditions over the past 300,000 to 500,000 years.
