Initially, penguins seem so predictable. They gather in large colonies, form pairs, and alternate sitting on the eggs in the most extreme environments on Earth. It’s an orderly routine that is very ...

Emperor penguins raise their chicks in conditions that would overwhelm most animals. Winter temperatures can fall to minus 50°F, winds are relentless, and food is out of reach for months at a time.

Gentoo penguins in Argentina are breeding earlier as rising temperatures and deadly heat waves threaten vulnerable chicks.

As the planet heats up, king penguins appear to be thriving—at least for now. The black-and-white birds are breeding earlier than two decades ago, and more of their chicks are surviving, researchers ...

Only about 12,000 breeding pairs of Humboldt penguins remain in the wild. So when two tiny chicks — small enough to fit in a person’s hand — hatched at the Oregon Zoo in March, the arrivals meant more ...

A deadly virus is killing the chicks of the rare yellow-eyed penguin, and scientists think the reason may be found in their ...