HOME >> BIOLOGY >> NEWS
Human Ancestors Went Out Of Africa And Then Came Back: NYU/SUNY-Albany Research Team Proposes Controversial New Model for Evolution of Humans

the long-held view that the evolutionary history of the lineage leading to humans was confined to the African continent. A theory similar to Stewart and Disotell's was proposed more than 25 years ago by pioneering molecular anthropologistVincent Sarich, but he lacked the rigorous analytic methodology necessary to prove it.

Stewart and Disotell's research is based on parsimony analysis. That is, the model which involves the fewest evolutionary events to explain the data is the most plausible. The technique -- which was first developed by entomologists and has been used only recently by anthropologists -- uses computer technology to analyze large sets of data and identify the most parsimonious evolutionary model.

Using parsimony analysis, Disotell and Stewart find it more likely that the common ancestor of the "great" apes (orangutans, African apes and humans) evolved in Asia rather than in Africa. The problem with the traditional model, say Disotell and Stewart, is that it calls for at least six separate dispersal events out of Africa to account for all living and extinct hominoid species in Eurasia. Disotell and Stewart's model -- which requires only two hominoid migration events -- is a more parsimonious model; and therefore, they assert, a more plausible one.

Caro-Beth Stewart, an associate professor of biology at Albany, was a 1994 winner of the National Science Foundation Presidential Faculty Fellow Award. Her research into the molecular basis for adaptive evolution of higher organisms has also been funded by the National Institutes of Health.

Todd Disotell is about to become an associate professor of anthropology at NYU after recently being promoted. He has set-up and runs a molecular anthropology laboratory where he is investigating various aspects of ape and Old World monkey evolution supported by a National Science Foundation CAREER Award for young investigators. With additional NSF funding, he is applying the latest automated approaches to D
'"/>

Contact: josh plaut
josh.plaut@nyu.edu
(212) 998-6797
New York University
4-Aug-1998


Page: 1 2 3

Related biology news :

1. Human chromosome 5 final sequence analysis released to public
2. Humans march to a faster genetic drummer than primates, UC Riverside research says
3. Applied Mathematical Models in Human Physiology
4. Human health risks in space flight focus of research internships
5. Human periodontal ligament stem cells isolated for the first time
6. Organization for Human Brain Mapping 2004 Annual Meeting
7. 20 May AAAS lecture: Computers that Respond to Human Emotion
8. Human brain works heavy statistics learning language
9. New Woods Hole Center for Oceans and Human Health established
10. European Society of Human Reproduction and Embryology conference - June 2004
11. Human genome-wide RNAi library for biotech and pharma research

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/13/2018)... ... , ... Study Protocol Summary of QC Procedure , 1 – Patient Enrolment ... at the site., 3 - Three photos captured with Apple iPad and transferred to ... - Photos moved to eAdjudication® and submitted to Reviewers., 6 - Reviewers (blinded) ...
(Date:12/13/2018)... ... December 12, 2018 , ... NDA ... of the firm’s prominent Expert Consultants, was recently honored by the American Association ... who are working in pharmaceutical science, technology, engineering, or education and whose contributions ...
(Date:12/13/2018)... ... December 12, 2018 , ... Royal ... cellular therapy, has announced the launch of Maxx-Cell, the world's most advanced bone ... approach of aspirating a patients autologous bone marrow cells. Maxx™-Cell however does not ...
Breaking Biology News(10 mins):
(Date:12/13/2018)... , ... December 11, 2018 , ... ... doctors and nurses can use to quickly detect Clostridium difficile (C. diff), a ... heart of a handheld device that can be used onsite in doctor’s offices ...
(Date:12/13/2018)... ... December 12, 2018 , ... RURO, Inc., a leading ... Limfinity® ML (Machine Learning) addition for its Limfinity® 7 framework. , Limfinity® ... In the module, trained models make predictions based on user inputs; the result ...
(Date:12/13/2018)... NEW YORK (PRWEB) , ... December 12, 2018 , ... ... introduce Styletto- their new sleek and slim hearing aid within its Vision and Hearing ... and hearing loss. , Studies show that despite continued efforts to destigmatize hearing ...
(Date:12/13/2018)... ... December 13, 2018 , ... Microbial Discovery Group ... This has been part of their strategic plan and an important milestone in ... custom fermentation opportunities for MDG within the $44 Billion human probiotic market. This ...
Breaking Biology Technology:
Cached News: