Gentoo penguins are the world's fastest swimming birds, clocking in at maximum underwater speeds of up to 36 km/h (about 22 mph). That's because their wings have evolved into flippers ideal for moving ...

Penguins generate centripetal force when turning by pointing their belly inwards and moving their wings asymmetrically. New findings shed light on the previously unknown mechanisms that these birds ...

Sphen, an Australian gentoo penguin who became an unlikely global symbol for equality, has died from apparent natural causes at age 11, the aquarium in Sydney where he resided said Thursday. Sphen ...

A gentoo penguin with unusually dark plumage has been spotted in Antarctica. The bird is only the second gentoo penguin ever to be documented with melanism, a condition that causes the overproduction ...