Penguins

Gentoo penguins seem to gather in colonies, and their large piles of poop help melt the snow and provide "nurseries" for their young.

Fossils left behind by a penguin that was hunted to extinction reveal a remarkably fast turnover in species occurred after Polynesians settlers wiped out New Zealand's weird island wildlife.

Earth's last ice age was so cold that even Antarctica's emperor penguins had trouble with the chill, a new study finds.

Despite their tuxedo style, when it comes to enjoying food, penguins have poor taste, a new study finds.

Rovers — especially cute ones that are disguised as penguin chicks — seem to be better at spying on penguins than humans are.

Chinstraps, Gentoos, Adelies and more. These stunning penguin photos reveal the beauty of Antarctica's flightless birds.

As the glaciers melted about 15,000 years ago, warmer weather and ice-free conditions allowed king penguins to colonize the string of islands north of Antarctica, a new genetic study has found.