True to their nickname, terror birds (Phorusrhacidae) are known as one of the largest and also the most fearsome birds to ever live. These were flightless birds with ...

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 predator may have killed it, scientists ...

About 13 million years ago in a vast South American wetland, colossal predators clashed. The fossilised bone from an enormous flightless bird found in Colombia shows tooth marks made by a giant caiman ...

For the new study, the researchers evaluated the bite mark by creating detailed 3D images of the fossil. The bone marks had no signs of healing, while the size and shape of the marks were consistent ...

A Haast’s eagle attacks a moa pair. John Megahan, PLOS Biology, 3(1): e20 via Wikipedia under CC By 2.5 Evolution has a fondness for big birds. During the past 66 million years, repeated on different ...

“Terror birds” were giant, flightless, meat-eating creatures that roamed what is now South America for millions of years. As their threatening name suggests ...