num_pages: 339
description: With revolutionary scientific theories dramatic photographs and his own exciting discoveries world-famous paleoanthropologist Donald Johanson supports controversial hypotheses that challenge our most fundamental theories of human ancestry: Our earliest ancestors left the trees to walk on two legs at least four million years ago as part of a unique sexual strategy. Our first large-brained ancestors survived as scavengers competing with lions and hyenas for food rather thatn being the noble hunters of popular imagination. Neandertals are a specialized extinct side branch of the human family tree and were never part of our own species. Modern humans first evolved in Africa and later migrated around the world. 
language: English
title: Ancestors: In Search of Human Origins
publisher: Villard Books