Ancylotherium was a cousin of the bizarre, knuckle-walking Chalicothere. They also had short hind legs and long fore limbs, but they did not walk on their knuckles. They were rather like huge goats that browsed on the trees in the African vegetation. They were distantly related to horses, rhinos and tapirs but none of their line survived. Fossils have been found in East and South Africa, including sites at Laetoli and Olduvai Gorge. (27)
As the world became gradually colder, more mammals would go extinct and others would evolve to conquer the new challenges.