The ostrich is quite an unusual animal. With its giant feathery plumes, massive feet, and long spindly legs, it looks like something right out of a Dr. Seuss story. But seeing one of these enormous ...

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" ...

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 Zealand kiwis and South American rheas ...