Penguins

There are 3.6 million more penguins in Antarctica than previously estimated.

There may be other explanations for 150,000 missing Adélie penguins presumed dead in Antarctica.

The Galápagos are more than a life raft in Pacific currents — they actually alter the Pacific currents, and in so doing, help feed the islands' residents.

Can perky penguins survive as the oceans grow crowded?

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.