You may have thought Big Bird was unrealistically gigantic, but he's still not the largest bird to ever walk the Earth. That honor goes to elephant birds, which stood 10 feet tall and roamed ...

Madagascar is home to some of the world’s most unique and remarkable species. However, one of its most awe-inspiring residents, the elephant bird, vanished from the planet roughly 1,000 years ago.

History has not been kind to the elephant bird of Madagascar. Standing nearly 10 feet tall and weighing up to 1,000 pounds — or so researchers believed — this flightless cousin of the ostrich went ...

WASHINGTON (Reuters) - They might be the odd couple of the bird world. Scientists on Thursday identified the closest relative of New Zealand's famed kiwi, a shy chicken-sized flightless bird, as the ...