They also estimated the bird’s weight to be 156 kilograms, about that of a giant panda (Ailuropoda melanoleuca), which would ...
The bone, described two decades after its discovery, suggests the species might have grown up to 20 percent bigger than other ...
Analyzing a leg bone from a fossil site in Colombia, scientists have identified a massive “terror bird” that lived about 12 ...
Terror birds were apex predators some 12 million years ago in South America. A newly published discovery could be the largest ...
In Colombia, a fossil-collecting rancher has found a giant, flightless killer from 13 million years ago — and a missing link ...
Nearly 12 million years ago, the largest "terror bird" ever discovered was attacked and killed by a massive caiman, a 3D ...
While past terror bird fossils placed the meat-eating birds at 3 to 9 feet tall, new findings suggest that some were even ...
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 ...