Homo sapiens, our own species may have evolved from a species in Africa, known as Homo heidelbergensis. The Homo heidelbergensis living in Africa, may have looked quite similar to modern African Homo Sapiens and would have lived in drought conditions, these animals where probably critically endangered in Africa, while they thrived in Europe, evolving into Homo neanderthalensis, commonly known as "Neanderthals", making them our cousins, and not our ancestors as scientists once assumed, however new evidence proves that our european ancestors may have "interbred" with the Neanderthals, meaning 4% of our DNA is Neanderthal. However the Homo genus that we belong evolved from Australopithecus afarensis, a species that would more like a Chimpanzee than a modern human, however it could walk upright, meaning that with it's discovery came the answer to an old question "What came first?, expantion of the brain, upright walking, or tool use?", as we now know that first came upright walking, then came a slight increase in brain size, due to an increased diet of meat, and when stone tools where first used by Homo habilis they could get to more meat, meaning bigger brains, so the last two colided with each other. Humans did NOT live in the Oligocene epoch, in fact apes hadn't even evolved back then, however humans documented this lost world and it's fauna from the fossil record, humans are the discoverers of a Time of Wonder.