Hominine fossils found in dry grassland environments led anthropologists to believe hominines lived, slept, walked upright, and died only in those environments because no hominine fossils were found in forested areas.
Fosil hominine yang ditemukan di lingkungan berumput mengarahkan para antropologis untuk percaya hominine hidup, tidur, berjalan tegak, dan mati hanya di lingkungan tersebut karena tidak ada fosil hominine ditemukan di wilayah hutan.