"Penguins are already among the most threatened birds on Earth," Martin Harper, CEO of BirdLife International, said. "The emperor penguin’s move to endangered is a stark warning that climate change is ...

Emperor penguins have officially been declared an endangered species. Due to climate change, the International Union for Conservation of Nature (IUCN) has moved the emperor penguin from "threatened" ...

Researchers scanning satellite images of West Antarctica stumbled onto clusters of emperor penguins gathered on fast ice to molt, a seasonal process in which the birds shed and regrow their feathers.

Susan Rigetti is author of three books and a former editor at The New York Times and Slate. She is a contributing Globe Opinion writer. Emperor penguins have existed in Antarctica for more than 40 ...

SeaWorld San Diego, which has been home to emperor penguins for decades, will no longer house the large, cold-weather birds, which were recently moved to its sister park in Orlando. The penguins, ...