Scientists believe the dire wolf diverged from modern wolf-like creatures about 5.7 million years ago. The common ancestor of ...

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, ...

A bird that had previously gone extinct came back to life thanks to a rare evolutionary process known as "iterative evolution." The white-throated rail bird can presently be found on the island of ...

Every continent has produced its own version of a flightless giant. Some are surprisingly small, while others reach truly massive sizes. This ranking compares all seven continents based on their ...

WELLINGTON, New Zealand (AP) — Research linking New Zealand’s diminutive kiwi with a giant extinct bird from Africa is prompting scientists to rethink how flightless birds evolved. A report published ...

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.

May 9 (UPI) --Evolution produced the same flightless bird species twice, with each occurrence separated by tens of thousands of years. The phenomena, called iterative evolution, helped bring the ...

Scientists have discovered a new species of flightless bird on a remote island in the Philippines, the conservation group BirdLife International said Tuesday. The rare find is dramatic, as flightless ...

Looking down the western slope of our home airstrip, one’s first impression is of a lot of very large trees, both bounding the runway and beyond. The second thing you notice is the striking, ...

ALACHUA, Fla. (AP) — A large, flightless bird native to Australia and New Guinea attacked and killed its owner when the man fell on his farm in Florida, authorities said Saturday. The Alachua County ...

More than 100,000 years ago, a bird flew from Madagascar to an island chain, where it lost the ability to fly. The seas rose and then fell and the bird flew back, only to become flightless again. To ...