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

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

Also read Undiscovered Chopin Waltz Found in New York Library After 200 Years This fossilized leg bone suggests that the newly discovered terror bird could be the largest member of the species found ...

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

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

Researchers confirm the terror bird fossil 20 years after its South American discovery, comparing the creature to a massive, ...

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

Evolutionary biologists report they have analyzed a fossil of an extinct giant meat-eating bird -- which they say could be the largest known member of its kind -- providing new information about ...

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

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

The terror bird - an extinct group of carnivorous birds that once dominated the current territory of Argentina, Brazil, Chile, and Uruguay after the extinction of ...

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