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

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

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

These formidable predators roamed Colombia’s Tatacoa Desert about 12 million years ago, alongside car-sized armadillos, ...

Evolutionary biologist Federico Degrange from Argentina's Center for Research in Earth Sciences and colleagues found the bird ...

A 12-million-year-old fossil has revealed what may be the largest known "terror bird" ever found, according to paleontologists.

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

Millions of years ago, long-legged, big-beaked, meat-eating “terror birds” stalked the Americas. The imposing creatures ruled ...

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