Building Modern Humans. In the 1960s, Mary Leakey found tools from about 1.8 million years ago in Olduvai Gorge. These tools, called Olduwan tools, are.
Chapter 15 Human Evolution: Building Modern Humans.
Chapter 14 The images on this CD have been lifted directly, without change or modification, from textbooks and image libraries owned by the publisher,
Chapter 15 Human Evolution: Building Modern Humans
Chapter 15 The images on this CD have been lifted directly, without change or modification, from textbooks and image libraries owned by the publisher,
