That gave the birds a chance to invade the newly attached land mass to the north, and at least one species, an 8-footer called Titanis walleri, did just that.

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

About 3.5 million years ago, carnivorous birds with hooked beaks standing 10 feet (3 meters) tall roamed parts of South America in search of prey. Now, researchers have found a nearly complete ...

An exquisitely preserved fossil of an ancient terror bird reveals that the fearsome predator had exceptional low-frequency hearing.

Many of the other fossil birds found in Africa were birds which lived along the prehistoric shoreline, and the new species from the Gour Lazib site represents the oldest terrestrial bird yet found ...

The six-million-year-old tracks of a giant carnivorous bird show that this hunter was not so different from its earlier dinosaur relatives.

Rare ‘Terror Bird’ Fossil Found in Colombia Reveals the Enormous Size of a Prehistoric Predator The bone, described two decades after its discovery, suggests the species might have grown up to ...

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

The Houston Zoo is showcasing Prehistoric Beasts, an animatronic display of life-size dinosaurs, animals and beasts that once roamed the Earth. If you stick around to tour the zoo, you'll also see ...

Why Have Birds Never Gotten as Big as T. Rex? Even the most massive birds have never reached the sizes of their dinosaur relatives ...