The identification of part of the fossilized remains of a so-called "terror bird" species in South America has given researchers new insight into the apex predators ...

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(CNN) — A near complete skull fossil found in Antarctica has revealed the oldest known modern bird — a mallard duck-size creature related to the waterfowl that live by lakes and oceans today, a new ...

The end of a terror bird’s left tibiotarsus, a lower leg bone in birds equivalent to that of a human tibia or shin bone, dates back to the Miocene epoch around 12 ...