The mystery of how related flightless birds ended up so far apart on different continents may have been solved.

Madagascar’s elephant birds — which weighed as much as three or four people and went extinct several hundred years ago — turn out to be the closest known relatives of New Zealand’s chicken-sized kiwi.

Add Yahoo as a preferred source to see more of our stories on Google. Aside from being a delight to watch, flight in birds is regarded by many cultures as a symbol of freedom, and a source of ...

With their charming waddles, heat-conserving huddles and tuxedo-like plumage, emperor penguins are among the world's most ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Flightless birds, like the dodo bird of the small Indian ...

There would be at least four times as many flightless bird species on Earth today if it were not for human influences, finds a study led by UCL researchers.The study, published in Science Advances, ...

Researchers examined dozens of bird species in museum collections looking for differences in the feathers and bodies between birds that can fly and birds that can't. They found that when birds evolve ...

From ostriches to kakapo parrots to flightless ducks, birds have lost the ability to fly many times. But some groups of birds end up grounded more often than others, and now it seems that those that ...

When the first humans started to colonise all the regions of the world, many species went extinct. Some were directly hunted to extinction, others saw their habitats destroyed, and yet more were wiped ...