National Geographic : 1961 Oct
Earliest known hunters, who date back nearly two million years, lived largely on tortoises and catfish they could catch by hand. The Leakeys found no hunting weapons with the fossils. Wooden clubs may have helped Zinjanthropus, a true man in the tool making sense, fell larger game, like this prehistoric zebra colt. In lean times Zinj ate rats and mice, as did all Olduvai's dwellers through the ages. (C NATIONALGEOGRAPHIC SOCIETY Dawn of the spear, a sharp ened stick, possibly occurred among Zinjanthropus's succes sors, who occasionally stalked large game, such as this sitatun ga, a swamp-dwelling antelope.