Navigation Links
Animal bone markings show evidence that 'Lucy' species used stone tools, ate meat
Date:8/12/2010

estion that the announcement of stone tool use at 3.4 million years ago will unleash a flurry of controversy and genuine disbelief among some scholars," said Johanson. "However, I believe the team has presented a convincing case of stone tool use during Lucy's time. These unexpected results may well generate a new understanding of early hominid behavior and will prompt a reexamination of the tens of thousands of animal bones already collected from this time period at Hadar, Lucy's home, and other sites in Kenya and Tanzania.

"Very often it is breakthroughs such as this that stimulate new and expanded research strategies that promise to significantly enlarge our understanding of human origins," Johanson said.

Lead author of the Nature article Shannon McPherron observed: "Now, when we imagine Lucy walking around the east African landscape looking for food, we can for the first time imagine her doing so with a stone tool in her hand." McPherron is an archeologist with the Dikika project and research scientist at the Max Planck Institute in Leipzig, Germany. He and Alemseged led the Dikika fieldwork.

The last place early humans like Lucy wanted to be on the African landscape was in a competitive dangerous situation next to an animal carcass, noted Marean.

Yet, "these marks are unusual compared to other butchery marks I have seen," he said. "They show a lot of force, a lot of heavy action."

Marean framed the research findings as "a spectacular and exciting discovery pertaining to early human evolution." But, while the evidence shows the Australopithecines at Dikika were using sharp-edged stones to crack and strip meat from the bones, it is impossible to tell from the marks alone whether these early hominins were making their tools and carrying them, or simply finding naturally sharp rocks.

Many questions remain about the use of stone tools by human ancestors and the introduction of meat into their diet.


'/>"/>
Contact: Carol Hughes
carol.hughes@asu.edu
480-965-6375
Arizona State University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Genome of ancient sponge reveals origins of first animals, cancer
2. Couch potatoes of the animal kingdom
3. Ecological scientists assess the fundamentals of animal behavior
4. Behavior breakthrough: Like animals, plants demonstrate complex ability to integrate information
5. New study documents use of hormone progesterone in simple microscopic aquatic animals
6. Plastic antibody works in first tests in living animals
7. Mannitol boosts effectiveness of potential cord blood treatment for cerebral palsy in lab animals
8. Animal study reveals new target for antidepressants
9. Study sheds light on how marine animals survive stress
10. Queens researchers reveal parasitic threat to animals and the environment
11. Massive resources now directed at sustainable animal waste technology
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Animal bone markings show evidence that 'Lucy' species used stone tools, ate meat
(Date:12/5/2014)... MOUNTAIN VIEW, Calif. , Dec. 4, 2014 ... and safety has boosted investments in new testing ... products has also given rise to a range ... driven by the requirements of Generation Y, which ... digital technologies. As a result, product development strategies ...
(Date:12/3/2014)... -- As part of our commitment to offering the ... announce the release of a new reader that will ... data that they need. The Atlas 2000 ... readers. Many such devices have serious shortcomings when it ... models force users to navigate numerous complicated steps in ...
(Date:11/21/2014)... Wash. , Nov. 20, 2014 C-Labs ... for the Internet of Things (IoT), today announced the ... of chief operating officer. Previously a strategic advisor to ... finance, and operations. Mr. Traynor is based out of ... . He reports to Chris Muench , Chief ...
Breaking Biology News(10 mins):Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4Inception Technologies to Release New Biometric Reader 2C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... play a bigger role than food alone, when it comes ... evidence over the past 150 years found that the effects ... override the effects of food alone on tooth decay. The ... Obesity Reviews . Professor Monty Duggal, an author ...
... Space Biomedical Research Institute (NSBRI) has selected Daniela ... one of four young investigators in the nation ... is a postdoctoral fellow in Georgetown,s Lombardi Comprehensive ... and Molecular & Cellular Biology. In the ...
... Sawyer will use a $120,000 grant from the Foundation for ... the cells it attacks have evolved together over time. The ... drugs. When HIV infiltrates cells, the virus hijacks its ... It has been recently found that the retrovirus hijacks about ...
Cached Biology News:GUMC young scientist selected postdoc Fellow at National Space Biomedical Research Institute 2Evolutionary biologist will study HIV with grant from AIDS research foundation 2
(Date:12/24/2014)... December 23, 2014 Pipette.com announces their ... Twitter followers can submit their #HolidayInTheLab pictures for a ... lab mates. , For those struggling to think of ... Pipette.com Holiday in the Lab Contest provides the ideal ... followers to send pictures of their chemistree, holiday ...
(Date:12/24/2014)... , December 23, 2014 ... Algeria , out today and available for free download ... actors driving change and growth in the sector today. ... scored notable successes has been in developing a homegrown pharmaceutical ... percent local production still remains some way off. A cursory ...
(Date:12/24/2014)... NEW YORK , Dec. 23, 2014 ... pilot study of mazindol in children with attention deficit/hyperactivity ... in December 2014 . The paper, ... with attention deficit/hyperactivity disorder" ( Konofal et al, ... 1;8:2321-2332. eCollection 2014 ) shows that mazindol might ...
(Date:12/22/2014)... , Dec. 22, 2014 /PRNewswire/ - RepliCel Life Sciences ... medicine company focused on the development of autologous cell ... of the University of Calgary in conjunction with co-authors ... which further validates the company,s ongoing clinical research using ... of pattern baldness. The paper entitled " ...
Breaking Biology Technology:Major Pipette Distributor Pipette.com Announces their Holiday in the Lab Contest 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 2Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 4Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 5
... LEXINGTON, Mass., June 24 Instrumentation Laboratory,(IL) today ... Premier 4000,critical care analyzer. The recipient for this ... IL began shipping the new GEM Premier 4000,analyzers ... The remarkable,commercial success of this breakthrough analyzer underlines ...
... IRVINE, Calif., June 24 Stason Pharmaceuticals, ... announced,today that it has appointed Diana Wood ... be responsible for all business development,functions, including ... is a senior executive with extensive experience ...
... British Columbia researchers has developed a technique that controls ... superconductors, a procedure considered impossible for the past two ... the team deposited potassium atoms onto the surface of ... the scientists to continuously manipulate the number of electrons ...
Cached Biology Technology:Instrumentation Laboratory Ships 1000th GEM Premier 4000 Analyzer to Scripps Health 2Instrumentation Laboratory Ships 1000th GEM Premier 4000 Analyzer to Scripps Health 3Stason Pharmaceuticals, Inc. Appoints Diana Wood as Vice President, Business Development 2UBC physicists develop 'impossible' technique to study and develop superconductors 2
... useful for routine procedures. Hollandes contains formaldehyde ... will decalcify small bone specimens. Tissue that ... successfully with most stains, and the cupric ... cell membranes and cosinophil and endocrine cell ...
... CHEMICON's In Vitro Osteogenesis Assay Kit ... MC3T3-E1cells to a mature osteoblastic lineage, as ... this kit provides all the necessary reagents ... a standard plate reader. This product is ...
... gold standard for automated bioresearch: Developed ... applications • Based on decades of ... accessories designed for bioresearch • Holographic ... Versatility, reliability and ease-of-use • Pulsed ...
... Using information-rich MSn data, the patent-pending ... multiple levels of fragmentation, isotope pattern ... to accurately determine the correct formula ... approaches for deducing empirical formulae from ...
Biology Products: