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 ...

When male emperor penguins face the minus-58-degrees-Fahrenheit (minus 50 degrees Celsius), 120-mph (200 km/h) winds of Antarctic winters, the birds rely on their neighbors' bodies to keep themselves ...

Penguins constitute a fascinating family of flightless birds that, although somewhat clumsy on land, are extremely talented swimmers. Their incredible maneuverability in water has captivated ...