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:4/17/2014)... honored Clemson professor Rajendra Singh Thursday as a ... and expand solar deployment in the residential, commercial ... Banks Professor of Electrical and Computer Engineering and ... considered a local hero leading the charge across ... in solar power and driving policy changes at ...
(Date:4/17/2014)... honeybees in Europe, Asia and the United States are ... be impacting native honeybee populations at this time, according ... include including Nosema microsporidia and Varroa ... resilient to these invasive pests, which suggests to us ... Asia and the United States currently are not necessary ...
(Date:4/17/2014)... Researchers in France have hit on a novel ... receive the correct and most effective treatment possible., ... the western and developing world. If left untreated, ... to renal failure and other complications. In many ... problem. Clearly a more effective pathological approach to ...
Breaking Biology News(10 mins):White House honors Clemson professor as 'Champion of Change' for solar deployment 2East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
... throughout the world and ensuring safe water supplies would do ... any other possible measure, according to an analysis released today ... water and sanitation reduces poverty in three ways. ... entrepreneurs; , Significant savings are achieved in the ...
... Researchers have discovered a mechanism for the rapid growth seen ... The tumors, which are made up of proliferating blood ... descent, with girls more frequently afflicted than boys. The ... blood-red lump on the head or facethen grow rapidly in ...
... Missouri Botanical Garden in St. Louis operates one of ... and the second largest in the western hemisphere. With ... a gigantic new aroid species from Ecuador, the ... has reached a milestone of six million specimens. ...
Cached Biology News:Providing toilets, safe water is top route to reducing world poverty: UN University 2Providing toilets, safe water is top route to reducing world poverty: UN University 3Providing toilets, safe water is top route to reducing world poverty: UN University 4Providing toilets, safe water is top route to reducing world poverty: UN University 5Researchers identify Achilles heel of common childhood tumor 2Missouri Botanical Garden mounts milestone 6 millionth herbarium specimen 2Missouri Botanical Garden mounts milestone 6 millionth herbarium specimen 3
(Date:1/14/2014)... Diego, CA (PRWEB) January 14, 2014 ... on the products of cells grown under simulated embryonic ... international license agreement with Suneva Medical, Inc. for physician-dispensed ... (CCM). , This agreement is an amendment ...
(Date:1/14/2014)... EquitiesIQ, a leading informational research provider, ... is an emerging biomedical company acquiring, developing, manufacturing, and ... , Free report download: http://equitiesiq.com/reports/alliqua/ , In ... team and Board, which launched the company’s new strategy ...
(Date:1/14/2014)... 2014 iLab Solutions, the leader in core ... Director of Product Strategy. In this role, Michelle will work ... to guide in the development of iLab products. Her main ... possible benefit to the scientific community by offering the most ...
(Date:1/14/2014)... January 14, 2014 Global Record ... innovative information technology solutions for patients, physicians, the ... stakeholders, announced today the signing of a three-year ... and Drug Administration (FDA). This initiative is ...
Breaking Biology Technology:Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 3EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... Genzyme Corp. said on Wednesday it has agreed ... Wisconsin-Madison biotech spinoff, for $600 million in cash. , ,Bone ... more than $2 billion and almost 7,000 employees worldwide, plan ... companies recently reported healthy quarterly profits and revenues. Bone Care ...
... a new copy machine for $57,000. , ,The Z-Corp ... typical office copier: It makes three-dimensional models of small structures ... , ,Using white polymer powder and colored inks, the printer ... a time. Z-Corp is headquartered in Burlington, Massachusetts. , , ...
... can submit executive summaries of their businesses for angel ... May 9. , ,The Wisconsin Angel Network ... investor networks with entrepreneurs based on the investors' market ... a deal-flow pipeline, has been designed to be a ...
Cached Biology Technology:Massachusetts firm to buy UW spinoff Bone Care for $600 million 2Massachusetts firm to buy UW spinoff Bone Care for $600 million 3Start-ups, angels can connect on new state Web site 2Start-ups, angels can connect on new state Web site 3
... Automatic grid, subgrid and spot finding overcome tedious spot, ... template assignment , ... options to optimize, ... Characterize more precisely through grouping by cells, grids, ...
... unique human proteins on a 1x3 ... a cross section of all cellular ... high-quality results. Additional control proteins and ... validity and reproducibility., ,UNIchip protein microarrays ...
...
... The benchmark for analytical performance ... ease-of-use and the ultimate in ... Varian 810-MS features include: ... optics minimize,interferences, providing reliable, routine, ...
Biology Products: