Scientists Continue to Debate the Relationship Between Two Homo Fossil

Scientists continue to debate the relationship between two Homo fossil finds: KNM-ER 1470, named H. rudolfensis by some, and KNM-ER 1813, generally considered to be an exemplar of H. habilis. Is the smaller KNM-ER 1813 a distinct species? Could it be a female version of KNM-ER 1470, both being simply a female and male pair of the highly variable H. habilis? The only sure conclusion is that

A) there is a trend in hominin evolution toward large molars.
B) females are poorly represented in the hominin fossil record.
C) no hominin fossil younger than 2.5 m.y.a. has exhibited chimplike features.
D) KNM-ER 1470 is more like an australopith than a Homo.
E) several different kinds of hominin lived in Africa before and after the advent of Homo.

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