Kelenken, the "Winged Deity," isn't exactly popular enough to really be considered a deity, but at least it isn't a weird herbivore like Gastornis. But perhaps it qualifies with its size; at two and a half meters tall, Kelenken was the largest of the "terror birds." Terror certainly was the right word to describe any animal with a fierce, hooked beak such as this. Incredibly agile and swift, Kelenken chased down its prey without mercy. It had two possible methods of attack: blows from the beak or picking up and shaking. Blows from the beak would shatter bones during chases, rendering its food immobile and so it could administer the final blow. When picking up its prey, it could vigorously shake it until its back broke, paralyzing it. Living in South America during the Miocene Period, its large size and massive, 28-centimeter-long beak made it king of the foothills that it lived in. These ancient foothills are what is now the giant Andes Mountains. Kelenken roamed these future mountains using its spectacular beak as a weapon, likely chasing down speedy ungulates. It was not the only king of the hills, however; carnivorous mammal Patagosmilus also prowled this land, but it is unknown how their niches overlapped.