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Homo habilis

Who formally announced Homo habilis as a new species in 1964?

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An illustration of Homo habilis, an early human ancestor, shown walking upright with a hairy body and ape-like features. A scale beside the figure indicates height in inches and centimeters. — Homo habilis Artist's rendering of Homo habilis, which lived from 2 to 1.5 million years ago.

The formal announcement of Homo habilis as a new species in 1964 was made by anthropologists Louis S.B. Leakey, Phillip Tobias, and John Napier.1