Findings
One set of fossil remains (OH 62), discovered by Donald Johanson and Tim White in Olduvai Gorge in 1986, included the important upper and lower limbs. Their finding stimulated some debate at the time. An older (1963) finding from the Olduvai site found by N. Mbuika had included a lower jaw fragment, teeth and upper mandible possibly from a female dating 1.7 million years old. The remains from three skeletons stacked on top of each other demonstrated australopithecine-like body with a more human-like face and smaller teeth.
Compared to australopithecines, H. habilis's brain capacity of around 600 cm³ was on average 50% larger than australopithecines, but considerably smaller than the 1350 to 1450 cm³ range of modern Homo sapiens. These hominins were smaller than modern humans, on average standing no more than 1.3 m (4 ft 3 in) tall. The small size and rather primitive attributes have led some experts (Richard Leakey among them) to propose excluding H. habilis from the genus Homo, and renaming as "Australopithecus habilis".
Read more about this topic: Homo Habilis
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“Our science has become terrible, our research dangerous, our findings deadly. We physicists have to make peace with reality. Reality is not as strong as we are. We will ruin reality.”
—Friedrich Dürrenmatt (1921–1990)