In the Red Rift Valley of Africa, anthropologists first found clues to prehistoric life. Give 2 examples of these clues to prehistoric life, and describe their importance to scientific research about first humans.

Prehistoric life have been discovered in Olduvai George and Kariandusi unearthed tools and early hominids belonging to various hominids such as Homo Erectus, homo Habillis, and kenyapithecus. the discovery mostly credited to the leakey's is important because it falsify the path of evolution of life by Charles Darwin.