@book {2031,
	title = {Ancestors : in search of human origins},
	year = {1994},
	note = {Donald Johanson, Lenora Johanson, and Blake Edgarill. (some col.) ; 25 cm},
	pages = {ix, 339 p},
	publisher = {Villard Books},
	organization = {Villard Books},
	edition = {1st ed},
	address = {New York},
	abstract = {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.},
	keywords = {Human beings, Human evolution, Prehistoric peoples},
	isbn = {0679420606},
	author = {Johanson, Donald C and Johanson, Lenora and Edgar, Blake}
}
