f early hominids, which gave rise to the genus Homo. According to Roberts (2000), "There are several species of Australopithecine known, dating from 4.4 mya to 1 mya. They have been divided by some investigators into several genera (Ardipithecus, Australopithecus, and Paranthropus), but most anthropologists see these hominids as belonging to one wide-flung genus"(Roberts, 2000). This group of hominids never ventured out of Africa. However, Roberts (2000) reported that the new material discovered in Kenya," prompted the suggestion by Leakey et al. that another genus of hominids existed about 3.5 mya: Kenyanthropus. These authors also think that this genus, rather than Australopithecus as known by the Lucy material, was the precursor of later hominids. They propose that Kenyanthropus was ancestral to Homo rudolfensis, already known from East Africa"(Roberts, 2000). From these early ancestors our genus Homo evolved, first Homo habilis, then 1.6 million years ago, Homo sapien ancestor Homo erectus evolved and left Africa rat
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