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

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

They also estimated the bird’s weight to be 156 kilograms, about that of a giant panda (Ailuropoda melanoleuca), which would ...

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

A fearsome flesh-eating bird from the Phorusrhacid family - known as "terror birds" - may be the largest of its kind ever ...

A FLESH-EATING bird has been uncovered after nearly 12 million years in a Colombian desert. Scientists revealed this extinct “Terror Bird” was the largest of its ...

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

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Millions of years ...

In Colombia, a fossil-collecting rancher has found a giant, flightless killer from 13 million years ago — and a missing link to the region’s evolutionary history. César Perdomo, a rancher and ...

Millions of years ago, apex predators in the Phorusrhacidae family lived up to their more common name—terror birds. The mostly flightless, meat-eating dinosaur ...