Long before big cats, terror birds reigned as apex predators. Here’s how these flightless birds hunted, and why they went ...

think the biggest bird around is an ostrich think again the prehistoric world was home to birds so massive so terrifying they'd make an ostrich look like a pet parakeet ever seen a creature as big as ...

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 ...

LOS ANGELES — A teenager in Argentina has discovered the fossil skull of the biggest bird ever found — a swift, flightless predator 10 feet tall that pursued its prey across the steppes of Patagonia ...