Scientists Say Gentoo Penguins Are Four Species, Not One

Letitia Denham

South Georgia Gentoo penguins (P. poncetii) live in more northerly habitats where conditions are milder, than their Southern Gentoo cousins which live on the Antarctic ice. Credit: Gemma Clucas First analysis combining genetic and physical differences of populations of gentoo penguins indicates they should be treated as four separate species. […]