This is a fascinating story of the interaction of two very iconic animals in the past,” the study’s lead author told NBC News ...

The terror bird. It’s a name that strikes fear, and with good reason. These “super predators” from the Phorusrhacidae were a ...

Researchers have found evidence of a titanic tussle between a terror bird and a large caiman in Colombia's ancient La Venta ...

Teeth marks made on the leg bone of a large avian reptile known as a terror bird 13 million years ago suggest an even bigger ...

The La Venta fossil site in Colombia is home to a rich fossil record, yielding a particularly diverse set of vertebrate ...

When a large asteroid hit Earth 66 million years ago, not all the dinosaurs went extinct. Birds, feathered dinosaurs that have thrived since the Jurassic, survived—and some of these birds were ...

A fossil fragment indicates that the ancient predator was 20% more massive.

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

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct giant meat-eating bird—which they say could be the largest known member of its ...

A 2-metre-tall flightless bird may have been the top predator in what is now Antarctica 50 million years ago. Two 8-centimetre fossil claws found on Seymour Island, near the tip of the Antarctic ...