Navigation Links
Fossil Suggests Humans Walked Upright 3 Million Years Ago
Date:2/10/2011

THURSDAY, Feb. 10 (HealthDay News) -- Researchers say they have found a fossilized foot bone that proves human ancestors were walking on two feet 3.2 million years ago.

The fossil of the midfoot bone (fourth metatarsal) shows that Australopithecus afarensis had a permanently arched foot and walked essentially the same as modern humans, according to researcher William Kimbel, of the Institute of Human Origins at Arizona State University, and colleagues.

The authors of the report said their finding resolves debate between experts who believe A. afarensis was bipedal and those who think the species used a form of locomotion that was a stepping stone between the four-limbed (quadrupedal) tree-climbing of chimpanzees and full bipedalism.

"This fourth metatarsal is the only known of A. afarensis and is a key piece of evidence for the early evolution of the uniquely human way of walking," Kimbel said in a news release from Arizona State University.

The fossil was found in Hadar, Ethiopia, which is the richest source of A. afarensis fossils in eastern Africa. "Lucy" is the best known fossil of this species.

"Understanding that the foot arches appeared very early in our evolution shows that the unique structure of our feet is fundamental to human locomotion," colleague Carol Ward, of the University of Missouri, said in the news release.

"If we can understand what we were designed to do and how natural selection shaped the human skeleton, we can gain insight into how our skeletons work today. Arches in our feet were just as important for our ancestors as they are for us," Ward added.

The study is published in the Feb. 11 issue of Science.

More information

PBS has more about the evolution of human bipedalism.

-- Robert Preidt
'/>"/>

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Page: 1 2

Related medicine news :

1. Fossil Teeth of Neanderthals Reveal Fast Track to Maturity
2. A new view of fossils: The behavior of ancient life forms
3. Mouse Study Suggests New Clues to Celiac Disease
4. New research suggests tart cherries could speed muscle recovery
5. Video Suggests Mother Chimps May Grieve Death of an Infant
6. Research suggests V8 100% vegetable juice can help people meet key dietary guidelines
7. RIC study suggests researchers are entering a new era of advances in brain research
8. Study Suggests How Music Fools the Ear
9. Study suggests possible new treatment for severe 2009 H1N1 infection
10. Pill-Splitting Potentially Perilous, Study Suggests
11. Preoperative breast MRI suggests high cancer yield
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fossil Suggests Humans Walked Upright 3 Million Years Ago
(Date:11/28/2014)... -- Planning on seconds at Thanksgiving Day dinner this ... as gastroesophageal reflux disease (GERD) -- a few steps may ... nose and throat specialist at Lenox Hill Hospital in New ... on Thanksgiving: Pace yourself. Rather than ... throughout the day. It,s also a good idea to have ...
(Date:11/28/2014)... Austin, Texas (PRWEB) November 28, 2014 ... of prediabetes testing and treatment, helped employees learn ... complimentary on-site diabetes blood screening at a local ... Stop Diabetes @ Work initiative. , As ... @ Work program , PreDiabetes Centers is co-hosting ...
(Date:11/28/2014)... 2014 Mabel’s Labels , the ... and an award-winning company established by four moms, today ... and Tricia Mumby have been honored with a 2014 ... the PROFIT Award for Excellence in Entrepreneurship. , All ... Tricia Mumby) accepted the award on behalf of Mabel’s ...
(Date:11/28/2014)... UniWigs.com, a leader in the wig industry, has ... the next Monday. This promotion features: , > ... up to 70% off (no coupon code needed), ... shipping on orders over $49 , Visit http://www.uniwigs.com for ... Nov. 28th to Dec. 1st and the first 100 shoppers each ...
(Date:11/28/2014)... (PRWEB) November 28, 2014 "Most of my ... me to use crutches," said an inventor from Findlay, Ohio. ... convenient way to support my foot, which inspired me to ... to offer a convenient way to support an injured foot. ... around. It eliminates the need for crutches. The design redistributes ...
Breaking Medicine News(10 mins):Health News:Don't Let Chronic Heartburn Spoil Your Thanksgiving Feast 2Health News:PreDiabetes Centers Offers Workplace Diabetes Screening at Local School 2Health News:Mabel's Labels’ Co-Founders Named A Winner In The 2014 RBC Canadian Women Entrepreneur Awards Program; A Second-Time Win For The Brand 2Health News:Mabel's Labels’ Co-Founders Named A Winner In The 2014 RBC Canadian Women Entrepreneur Awards Program; A Second-Time Win For The Brand 3Health News:Pre-X'mas Crazy Sale Starts from $0 at UniWigs.com 2
... 28 A few spaces remain for the U.S. ... on Nov. 4-5, 2009. , (Logo: http://www.newscom.com/cgi-bin/prnh/20090824/FDALOGO ) ... and journalists and will focus on how FDA employs ... This year,s symposium will feature an address by FDA ...
... inflammatory diseases, researchers say , WEDNESDAY, Oct. 28 (HealthDay ... that fish oils benefit people with rheumatoid arthritis and ... an ingredient in fish oils called DHA into a ... can lead to various diseases, the scientists from Queen ...
... get a boo-boo, we might know to put a bandage on ... it all better. But, what if something happens to our ... for dental emergencies can quickly get back to smiling again. , ... http://inr.mediaseed.tv/oneClip_C/?feed=Ss8P5Rb1iQulYDAELUR0M_kpwKp_6YSM , Medialink is a division of ...
... , What Women Want, Think Should Be Done and at ... new poll released Wednesday by the Independent Women,s Forum ... should be Congress,s top priority and that a majority (51 percent) ... the proposals being considered today. The poll, conducted by WomanTrend, ...
... Collagen Matrix, Inc., the leader in collagen- and mineral-based ... Company,s Founder, President, and Chief Executive Officer was named ... Year category of the 2009 New Jersey Business of ... Certified Public Accountants and Consultants. All finalists will ...
... 28 Atlanta-based Webmedx , the fourth ... of black market sales of medical records in India as ... most reliable way to maintain standards of privacy and security. ... stringent rules for protected health information, the onus on transcription ...
Cached Medicine News:Health News:New Clues to How Fish Oils Help Arthritis Patients 2Health News:Just Released -- New Poll: Healthcare Through Women's Eyes 2Health News:Shu-Tung Li, Founder and CEO of Collagen Matrix, Inc. Honored as 2009 New Jersey Executive of the Year Finalist and Company Named One of Fifty Fastest Growing Companies 2Health News:Webmedx Reacts to News of Confidential Medical Records Being Sold on the Black Market 2
(Date:11/28/2014)... Chinese magnesium alloy maker DongGuan Eontec Co., ... alloy bone fixation screw has received Chinese regulatory inspection ... instrument and that the company acknowledges receipt of the ... Science and Technology Daily journalists Wang Xiangming and ... founder, Professor Li Yangde , has been a ...
(Date:11/27/2014)... 27, 2014 Hovione announced today ... Application with the U.S. Food and Drug Administration (FDA). ... developing improved drug delivery options for established drugs. ... novel formulation using a new patented crystalline base form ... widely prescribed oral antibiotics for acne. Currently, there are ...
(Date:11/26/2014)... 2014   Royal Philips (NYSE: ... availability of its portfolio of diagnostic X-ray ... Opta[i] , ProGrade and PrimaryDiagnost[ii]. With new releases ... the U.S., and availability of all these solutions ... customers innovative solutions designed to meet the needs ...
Breaking Medicine Technology:Chinese magnesium alloy manufacturer Eontec expects to have its medical magnesium alloy available for clinical trial in 2015 2Chinese magnesium alloy manufacturer Eontec expects to have its medical magnesium alloy available for clinical trial in 2015 3Chinese magnesium alloy manufacturer Eontec expects to have its medical magnesium alloy available for clinical trial in 2015 4Hovione Files its First Investigational New Drug Application With the FDA 2Philips expands global reach of diagnostic X-Ray solutions 2Philips expands global reach of diagnostic X-Ray solutions 3
... The automated solution for Western Blot analysis ... a fully automated Western Blot Analyzer for ... that reveal the presence of infectious diseases ... enables fast and accurate screening of allergies ...
... Advantages of using the Antigen-Antibody Pens-Using ... designed and developed specialized fountain pens, called ... deliver or write/mark the blotting membranes in ... specially formulated antigen-bonded colored dyes helps to ...
... of pure water, Complete, Compact Systems for ... compact S.D.S. Storage and Distribution Systems are ... of purified water produced by Elix or ... of stored water, provide effective protection against ...
... Liters of pure water, Complete, Compact Systems ... Water,Millipores compact S.D.S. Storage and Distribution Systems ... liters of purified water produced by Elix ... purity of stored water, provide effective protection ...
Medicine Products: