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

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 ...

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

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

A massive terror bird fossil, the largest of its kind, was recently uncovered in Colombia’s desert—shedding light on ancient ecosystems.

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

A Colombian rancher has discovered a fossilized bone that points to the existence of a giant terror bird species. The fossil, ...

The mostly flightless, meat-eating dinosaur descendents were the size of dogs at their smallest, but the largest known ...

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