Scientists have identified a new species of penguin, the southeastern gentoo penguin (Pygoscelis kerguelensis), marking a significant development in avian taxonomy after more than a century. This species inhabits the Kerguelen and Heard Islands in the southern Indian Ocean.
A comprehensive study involving genomic, morphological, and ecological analyses led to its recognition as a distinct species, as detailed in a research paper published by an international team of 22 scientists from the U.S. and Chile in the journal Communications Biology.
Previously, gentoo penguins were classified as a single species, but this research has revealed that they actually consist of four separate species: the northern gentoo (P. papua), southern gentoo (P. ellsworthi), eastern gentoo (P. taeniata), and southeastern gentoo (P. kerguelensis).
Rauri Bowie, a curator and professor at UC Berkeley, noted the longstanding debate about the accurate classification of gentoo penguins. The researchers suggest that the gentoos’ varied diet and inclination to remain close to home, rather than migrating, led to the development of isolated populations with distinct traits, contributing to the formation of new species over the past 300,000 to 500,000 years.
