Famous

Jamison Baskin
Mr. Dickerson
Chapter 8

1. What were the main differences between H. habilis and H. erectus? Was H. habilis to a greater extent like H. erectus, or more like the australopithecines?
a. Reconstruction of Australopithecus running bipedally with a pebble stopcock in hand. Along with tool use and manufacture, bipedalism is a distinguish part of being human. Compared with contemporary humans, early hominins had very midget brains. Australopithecus afarensis, a bipedal hominin that lived more than three million years ago, had a cranial capacity that barely surpassed the chimpanzee average. On the basis of its back teeth, it seemed more like Australopithecus. there also are problems with dating. The best dating guess is 1.8 m.y.a., and another estimate suggest that 1470 may be as old as 2.4 m.y.a. Originally, some paleoanthoropologist assigned 1470 to H. habilis, while others power saw it as an unusual australopithecine.

Another important habilis find was do in 1986 by Tim White of the University of California, Berkeley. OH62 is the partial skeleton of a female H. habilis from Olduvai Bed I. This was the first find of an H. habilis skull with a probatory amount of skeletal material. OH62 dating to 1.8 m.y.a., consists of parts of the skull, the right arm, and both legs.



Because scientist had assumed that H. habilis skull would be taller than tiny Lucy, OH62 was surprising because of its small sizing and apelike limb bones. Not only was OH62 just as tiny as Lucy, its arms were longer and more apelike than expected. The limb proportions suggested greater tree-climbing ability than later hominins had H. habilis may good-tempered have sought occasional refuge in the trees.

The H. habilis is more like the H. erectus because these Ileret negated the conventional view that habilis and then erectus evolved one after the other. Instead, they apparently split from a common ancestor anterior to 2 m.y.a. Then they lived side by side in eastern Africa for perhaps half a...If you want to get a full essay, order it on our website: Orderessay



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