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Grobet File Company of America Inc SET of 5 (+2 bonus) Habilis Multiple Uses Shaped Files Each file has a different pattern in the rasp/tooth area....

This fourth volume marks the definitive publication of the most important fossil finds in palaeoanthropology: Olduvai hominids 7. 13, 16 and 24 (popularly known to workers in the field as Jonny's Child, Cindy, George and Twiggy). Found from 1960 in Olduvai Gorge and dating from 1.9 to 1.6 million years ago, they were identified in 1964 by Louis Leakey and the author amidst great controversy as a hitherto unrecognised species of the genus Homo, named by then Homo habilis on account of its apparent tool-making abilities. Professor Tobias develops this conclusion through extensive analysis of the cranial and endocranial material and teeth and comparison with a treasury of data, much of its original, on early hominds from South and East Africa, Asia and Europe, as well as modern human and anthropoid ape specimens. He offers a substantial exploration of the place of Homo habilis in human evolution, its status in relation to the australopithecines and Homo erectus and its apparent capacity for spoken language, which he sees as the key to the staggering enlargement of the human brain over the last two million years.

Here is the essential guide to engineering, an authoritative reference book and timeline about how technology has given shape to our civilization. Engineering predates humanity; Homo habilis was knapping hand axes from fist-sized flints more than a thousand centuries before the dawn of modern humans. Admittedly the development of technology was slow back then but we ve made up for lost time since. Striding from the Stone Age to Silicon Valley in 100 steps, we will see how our inventors have seized every scientific breakthrough, new material, and better understanding to improve daily life and expand the scope of civilization. From reshaping rivers and containing the forces of nature to constructing artificial lifeforms and perhaps one day even taming alien planets, engineers think big. These men and women of action make our world.

Scientists have long envisioned the human family tree” as a straight-line progression from the apelike australopithecines to the enigmatic Homo habilis to the famous Neanderthals, culminating in us, Homo sapiens. But this model is unlike the evolutionary patterns known for all other vertebrates patterns that typically reveal multiple branchings and extinctions. In Extinct Humans, Ian Tattersall and Jeffrey Schwartz present convincing evidence that many distinct species of humans have existed during the history of the hominid family, often simultaneously. Furthermore, these species may have contributed to one another's extinction. Who were these different human species? Which are direct ancestors to us? And, the most profound question of all, why is there only a single human species alive on Earth now?

Preface List of Figures List of Tables Fossilisation Primate Radiation Australopithecines Homo habilis Homo erectus Neanderthal Man Modern Men Human Evolution Human Origins Molecular Clock Palaeodemography Palaeopathology Li