Phorusrhacidae
These extinct animals are frightfully known as “terror birds”. They were carnivorous flightless birds, and roamed the lands of South America during the Cenozoic era, which was around 62 to 1.8 million years ago. They were twice the size of an average human, and were up to 10 feet tall. Interestingly, the phorusrhacids were the only known large predators in South America to migrate north, during the Great American Interchange. For millennia, they were one of South America’s leading predators, but went extinct roughly 2.5 million years ago (Science.org).