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

The chomp marks showed no signs of healing, suggesting the bird either didn’t survive the event, or was already dead when it began. A new paper on the finding suggests that the caiman Purussaurus ...

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 ...

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 ...