Ahead of Earth Day, a sneak peek for National Geographic's The Secrets of the Penguins is revealed. Watch it here!

meaning the keepers are very busy making sure the penguin exhibit is clean when visitors come. But adulthood is already on the horizon. Pesto has started losing some of his baby feathers ...

Penguin chicks, whose coats are made of fluffy down feathers, aren't as protected from the rain as adult penguins. Getting ...

Blake Lively lends her voice to 'Secrets of the Penguins,' a National Geographic series diving into penguin families and ...

Now, the U.S. has its own baby penguin that some are saying is "the ... islands and are known for their distinctive orange feathers on their heads and upper chests, are the world's second-largest ...

The 50-pound penguin at Australia's Sea Life Melbourne Aquarium is now roughly 9 months old and losing his downy fluff in favor of adult plumage. (Credit: Sea Life Melbourne Aquarium) A Final ...

Wildlife welfare org. Pearl is a special penguin. The Wildlife Welfare Organisation (WWO) in Goolwa, Australia, found the little bird with head-to-toe white feathers on March 30. Due to the ...

Penguin feathers from the Antarctic Peninsula reveal mercury contamination, despite no local human sources. Mercury, a neurotoxin, bioaccumulates in food chains, affecting fish-eating animals.