You may have heard penguins being referred to as the “birds of the sea,” but unlike most birds, they can’t actually fly. Instead, they’re truly remarkable swimmers, gliding effortlessly ...

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution, researchers ...

The ostrich can't fly. Instead it has long powerful legs and it can run fast. The penguin can't fly either. And it's not too good at running. But they are great in water. Surprisingly, whether ...

“The reason the penguin was chosen is because penguins are birds, but they can’t fly,” Damiani said. “So the penguin represents the fact that our artists need a little bit of extra suppor ...

Penguins first evolved the ability to dive, like a puffin, and subsequently lost the ability to fly as they adapted to an aquatic realm, becoming excellent swimmers and divers. The earliest-known ...

This story appears in the November 2012 issue of National Geographic magazine. Roger Hughes has never seen emperor penguins in the wild. But when he saw them in a BBC documentary, rocketing ...

Get Instant Summarized Text (Gist) Flightless birds, such as penguins and ostriches, evolve from ancestors capable of flight. When birds lose the ability to fly, their bodies adapt more rapidly ...