Prehistoric Man Some prehistoric scientists have shown that humans evolved from human-like creatures and lived for more than 4 million years, but only a few hundred human remains were discovered, which are insufficient to study their development. Many scientists study the origin of man by analyzing the differences in genes and blood between high-end apes and contemporary humans because of their reliance on their approach, which suggests that the fossilized stones of humans and monkeys descended from a common ancestor. Their analysis also suggests that human ancestors began to develop in a completely different direction from predecessors The The Rila and chimpanzees about seven million years ago, but they are not supported by sufficient scientific evidence.