Navigation Links
Study Sheds Light on Evolution of Tree-Dwelling Humans

WEDNESDAY, Jan. 2 (HealthDay News) -- In human evolution, walking on two legs is a big deal. It marks the debut of humans as animals who live on the ground instead of in trees -- and researchers now have evidence of when this change took place.

A new study suggests that "Lucy," a member of a prehistoric primate species that appeared about 3.5 million years ago in Africa, lived in both worlds. Lucy, the researchers believe, could both climb trees and walk on the ground.

Until now, the ankles and feet of the Australopithecus afarensis indicated that the species wasn't able to climb trees easily, the study authors noted in the new report. But the researchers, led by Dartmouth College associate professor of anthropology Nathaniel Dominy, looked at modern humans in Africa and the Philippines and found that they could effectively climb trees.

This dual ability has to do with the capacity of some of the people studied to bend their feet upward toward the shin, beyond the range of motion normally seen in modern humans, helping them to climb trees, the study authors explained.

The findings suggested that hunter-gatherers like Lucy could both climb trees and walk.

The study is published in the current issue of the journal Proceedings of the National Academy of Sciences.

More information

For more on Lucy, visit

-- Randy Dotinga

SOURCE: Dartmouth College, news release, Dec. 31, 2012

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Page: 1

Related medicine news :

1. Let crying babes lie: Study supports notion of leaving infants to cry themselves back to sleep
2. Mental Disorders Linked With Domestic Violence, Study Says
3. Prenatal Antidepressants Dont Raise Fetal, Infant Death Risk: Study
4. Imaging study examines effect of fructose on brain regions that regulate appetite
5. High Fat Diet Tied to Increased Diabetes Risk Nature according to University of Massachusetts study reviewed by Naturecast Products
6. A Feinstein Institute for Medical Research Study Shows Early Cognitive Problems among Those Who Eventually Get Alzheimer's
7. Car Crashes Common for Sleepy Doctors in Training: Study
8. Study reports racial disparities in pediatric appendicitis treatment tied to hospital type
9. Strange behavior: New study exposes living cells to synthetic protein
10. Vanderbilt study examines Affordable Care Acts impact on uncompensated care
11. Cancer-Related Fatigue Often Overlooked, Study Finds
Post Your Comments:
Related Image:
Study Sheds Light on Evolution of Tree-Dwelling Humans
(Date:11/26/2015)... Las Vegas, NV (PRWEB) , ... November 26, 2015 , ... ... holiday shopping strategy. Many customers choose to buy during the Black Friday and ... holiday gifts. Shoppers don’t need to search the Internet high and low to find ...
(Date:11/26/2015)... ... November 26, 2015 , ... The Catalent Applied ... the need to integrate dose form selection in early phase drug development. The ... organization supporting and bringing together the UK’s emerging life sciences companies, corporate partners, ...
(Date:11/26/2015)... ... November 26, 2015 , ... WorldCare International, Inc., the first ... annual Employee Benefits Conference. The Employee Benefits Conference was hosted by the International ... November 11th, 2015. The conference was held at the Hawaii Convention Center in ...
(Date:11/26/2015)... ... 2015 , ... Indosoft Inc., developer and distributor of the world-class Asterisk based ... efficiency and reliability. , The new Q-Suite 6 platform is based on the latest ... itself into a specific piece of software for many key components of the suite. ...
(Date:11/25/2015)... ... November 25, 2015 , ... ... the perfect dish and pleasing the palates of attendees is of the utmost ... dish to a seasonal get-together, give these recipes a try this holiday season. ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... DUBLIN , November 26, 2015 /PRNewswire/ ... the addition of the "2016 Future ... Drugs of Abuse Testing Market: Supplier Shares, ... report to their offering. --> ... of the "2016 Future Horizons and ...
(Date:11/26/2015)... , November 26, 2015 /PRNewswire/ ... announced the addition of the  "2016 ... the European Therapeutic Drug Monitoring (TDM) ... Competitive Intelligence, Emerging Opportunities"  report to ... ) has announced the addition of ...
(Date:11/26/2015)... Research and Markets ( ) ... Future Horizons and Growth Strategies in the Italian ... Segment Forecasts, Competitive Intelligence, Emerging Opportunities" report ... --> This new 247-page report ... drug monitoring market, including emerging tests, technologies, instrumentation, ...
Breaking Medicine Technology: