Homo habilis, Biology

Two important human fossils that throw much light on the human ancestory were discovered in .Olduvai beds in Africa and in central Java respectively. Although the development of bipedalism and the resultant fieeing of hands are being regarded as the first happening towards the evolution of the genus Homo, subsequent human evolution essentially depended on the dramatic expansion in the brain size. This development in brain size began about 2 million years ago. Fossils discovered in Kenya and Tanzania suggested that individuals had cranial capacities more than 650 C.C. and close to 800 C.C. The fossils represented the first appearance of the human kind and termed Homo habilis which meant 'handy man' a term coined by Louis Leakey and his colleagues in 1964. Homo habilis had several features common to A. africanus such as similar height and weight and bipedal walking. But a closer scrutiny showed distinct differences in having a larger head (Fig. 14.8) and shorter rounder neck, relatively flat and less protruding face. Further, this Homo genus showed teeth Iess massive than southern apes. The name handy man suggests that he is a maker of tools. New discoveries from 1972 by Richard Leakey 'at Koobi fora in Kenya showed fossiI hominid skulls with cranial capacities of 800 C.C. More importantly along with the skulls, tools were also found there which justified the specific name habilis for the species and the inclusion of species under Homo.

Posted Date: 4/5/2013 3:32:23 AM | Location : United States







Related Discussions:- Homo habilis, Assignment Help, Ask Question on Homo habilis, Get Answer, Expert's Help, Homo habilis Discussions

Write discussion on Homo habilis
Your posts are moderated
Related Questions
Q. List the parameters used to differentiate between osseointegration and fibro osseointegration. The parameters used are: a) Pain b) Rigid fixation - mobility scale, pe

Which are the living beings that carry out photosynthesis? Which is the cell organelle responsible for the absorption of light for the photosynthesis process in plants and algae?

Left side displacement of abomasum (LDA) E tiology: It occurs commonly in large-sized, high producing adult dairy cows, immediately after parturition. High yielders are

NE R V OU S TISSUE The nervous tissue in general develops from the ectoderm of the embryo, but the microgliocytes. It does not have a matrix. The special properti

Morphological Nature of Endosperm The morphological nature of endosperm in angiosperms has been a subject of much discussion in evolution. The endosperm in gymnosperms is a g

What is Hemocoel? Explain in detail. Principle body cavity in molluscs and arthropods, remnant of the blastocoel. It forms part of open circulatory system found in these animal

Q. What are the stages of mitosis? Mitosis involves replication of DNA and its separation into two new daughter cells. Whereas only four phases of mitosis are often listed. Ent

Explain Pure Culture Techniques We learnt the techniques involved in sub-culturing, i.e., the process involved in transfer of culture from one medium to another or transfer of

Totipotency and Pluripotency In the starting we said that the fertilized egg cell (zygote) has the capacity or potentiality to give rise to all kinds of cell types, like a bl

What is the initial concentration of Beta-adrenergic receptor in blood?