We usually think of birds as small and delicate, but did you know that some of the biggest birds in the world have special ...

The largest bird on Earth is the ostrich, which can stand as tall as 9 feet and weigh between 220 and 350 pounds. Although ...

The imposing creatures ruled the roost as top predators of their terrestrial ecosystems, and scientists recently discovered ...

The fossil was on display in a museum, but unlabeled and hidden right under paleontologists’ noses for 20 years.

Phorusrhacid birds, better known as "terror birds," were some of the most impressive predators to ever walk the Earth.

“The emperor penguin is the largest penguin species on Earth.” The emperor penguin is the largest species ... they are ...

Birds are dying in record numbers this autumn by flying full-speed into Big Apple buildings, lured to their deaths by glassy ...

The October 12th Big Day also succeeded in recruiting 748,000 birders for the job, and producing 66,000 photos for a ...

This owl ranks among the largest and most powerful in the world and is the only known species to have ever killed a human. Adapted to hunt in dense forest habitats, this bird of prey is ...

Researchers hope the "exquisitely preserved" fossil will cast new light on an enduring mystery in paleontology.

Boatzon looked at the economic and environmental importance of the 10 largest lakes in the U.S. Lake sizes and locations are ...

Birds are dying in record numbers this autumn by flying full-speed into Big Apple buildings, lured to their deaths by glassy ...