Despite being incredibly fast, ostriches can’t fly, as they’re among the “flightless birds”. These birds are two-legged large birds that are found in various parts of the world.

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 study in the journal Evolution, researchers ...

They have a brightly coloured beak and swim underwater to catch fish. Not all birds can fly. Ostriches run very fast and penguins are very good at swimming. Can you think of any more birds that ...