Analyzing a leg bone from a fossil site in Colombia, scientists have identified a massive “terror bird” that lived about 12 ...

The bone, described two decades after its discovery, suggests the species might have grown up to 20 percent bigger than other ...

In Colombia, a fossil-collecting rancher has found a giant, flightless killer from 13 million years ago — and a missing link ...

While past terror bird fossils placed the meat-eating birds at 3 to 9 feet tall, new findings suggest that some were even ...

The fossilized leg bone of the terror bird went unidentified for almost 20 years. Nearly 12 million years ago, the largest ...

Terror birds were apex predators some 12 million years ago in South America. A newly published discovery could be the largest yet.

A team of researchers analyzed a 12-million-year-old fossilized bone discovered in Colombia's fossiliferous Tatacoa Desert ...

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

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct ...

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