A handful of bite marks on a fossil tens of millions of years old speaks to an ancient tussle between two terrifying apex predators. Reading time 2 minutes Sometime between 16 and 11.6 million years ...

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

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 ...

The mangled leg of a prehistoric predator suggests it may have been killed by an even bigger beast 13 million years ago, boffins believe. Terror birds — a ...