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

Nearly 20 years ago, while repairing a fence on his ranch in Colombia, fossil collector César Perdomo found the middle leg ...

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

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

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

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

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

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

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

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

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