The earliest Mammals lived on trees because; there was more supply of food o trees such as insects, leaves and birds’ eggs; and they were more secure from their enemies while up on trees
Archaeological evidence points at East Africa as the
cradle of mankind for the following reasons
- Evidence from archaeologists’ show that the earliest apes first evolved around lake and rift valley areas. And if man evolved from apes, then the first man must have appeared in east Africa.
- The savanna landscapes found in east Africa favored evolution while the conditions elsewhere (forests and deserts) Were unfavourable.
- The bones and weapons and tools which archaeologists are finding are proofs to this. These findings are widespread in Olduvai Gorge, Olorgesaillie, and Ngorongoro and around lakes of east Africa.
- The discovery of remains of early hominids and their material culture which form a pattern of human evolution prove this. E.g. we can trace the evolutionary process from Dryopithecus to Ramapithecus to Australopithecus to Homo habilis to Homo erectus to Homo sapiens.
Archaeological Sites in East Africa
Kenya; Rusinga Island, Fort Ternan near Kericho, Kariandusi near Elementaita, Gambles cave, Olorgesaillie, Kobi For a near Lake Turkana, Hyrax Hill and Njoro River cave.
Tanzania; Olduvai Gorge, Eyasi Simila, Apis Rock and Garusi
Uganda; Nsongezi, Napak, Magosi, Paraa, Ishanga, Mweya and Nyabusora
Ethiopia; Omo River Valley and Hadar.