How did the ostrich cross the ocean? It may sound like a joke, but scientists have long been puzzled by how the family of birds that includes African ostriches, Australian emus and cassowaries, New ...

The mass extinction that killed off dinosaurs might have been what grounded the ancestors of today's large flightless birds like the ostrich. Subscribe to read this story ad-free Get unlimited access ...

The world’s largest bird survives without wings by relying on incredible speed, powerful legs, and unique adaptations, ...

When people imagine birds, they usually think of flying across open skies with effortless freedom. But not every bird ...

Ostriches may be ground-bound, but their ancestors could take flight, a new study says The fearsome Australian cassowary, which cannot fly but is sometimes called "the world's most dangerous bird" ...