Navigation Links
Scientists discover oldest evidence of human stone tool use and meat-eating
Date:8/12/2010

nes, it is impossible to tell from the marks alone whether they were making their tools or simply finding and using naturally sharp rocks. So far, the research team has not found evidence of stone tool manufacture at Dikika from this early time period. This could indicate that the Dikika residents were simply opportunistic about finding and using naturally occurring sharp-edged stones. However, the sedimentary environment at the site suggests another potential explanation.

"For the most part, the only stones we see coming from these ancient sediments at Dikika are pebbles too small for making tools," says McPherron. "The hominins at this site probably carried their stone tools with them from better raw material sources elsewhere. One of our goals is to go back and see if we can find these locations and evidence that at this early date they were actually making, not just using, stone tools."

"Tool use in A. afarensis demonstrated by our discovery adds uniquely to the accumulating evidence that the Selam and Lucy species was ancestral to tool-making species including our genus Homo," says Alemseged.

While many questions remain about the history of tool use and tool making and about the timing and motivation of dietary changes among human ancestors, this discovery adds a rich new chapter to the story - a story that is deeply relevant to what makes us unique as a species.


'/>"/>

Contact: Sandra Jacob
jacob@eva.mpg.de
49-341-355-0122
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists discover oldest evidence of human stone tool use and meat-eating
(Date:8/6/2015)... Calif. , Aug. 6, 2015  Today, ... will visit Crossmatch ™ to learn firsthand ... and protect data. Crossmatch is a world leader ... technologies and expertise are helping federal agencies and ... and security.   "The vast majority ...
(Date:8/5/2015)... , Aug. 5, 2015 The biosensors market ... in applications, penetration into newer sectors, and development of ... global biosensors space has seen the entry of multiple ... so far. (Photo - http://photos.prnewswire.com/prnh/20150805/255570 ) ... Analysis of the Global Biosensors Market ( ...
(Date:7/31/2015)... de julio de 2015 BGI llevará a cabo ... del 22 al 25 de octubre de 2015, en ... conferencia celebra su décimo aniversario este año. Desde su ... de las reuniones anuales más influyentes del mundo en ... las conferencias científicas más dinámicas, entusiastas y amenas. ...
Breaking Biology News(10 mins):Rep. Honda to Visit Crossmatch in Redwood City 2Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3
... protect nerves are the likely origin of the Devil Facial ... population, an international team of scientists has discovered. ... affects only Tasmanian devils and was first reported in 1996. ... The disease is characterised by large tumours, mostly on the ...
... FL Scientists from The Scripps Research Institute have ... infectious protein devoid of DNA or RNA that can ... The study from Scripps Florida in Jupiter ... at the protein level and, through natural selection, these ...
... in the remains of long-dead plants, animals, or humans allows ... studies of this kind on ancestral members of our own ... ancient DNA from modern-day human DNA contamination. Now, research by ... Leipzig, published online on December 31st in Current Biology ...
Cached Biology News:Nervous culprit found for Tassie devil facial tumor disease 2Scripps Florida scientists show 'lifeless' prions capable of evolutionary change and adaptation 2Scripps Florida scientists show 'lifeless' prions capable of evolutionary change and adaptation 3Scripps Florida scientists show 'lifeless' prions capable of evolutionary change and adaptation 4Using modern sequencing techniques to study ancient modern humans 2
(Date:8/31/2015)... SAN DIEGO , Aug. 31, 2015 ... drug development company announces that the Company,s lead antibody, ... subject of five separate presentations during the upcoming World ... Hawaii September 2-5, 2015. Researchers from the ... (MSK) will present results on the use of MabVax,s ...
(Date:8/31/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/k6lcp2/mexico_biomedical ) ... Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Mexico Biomedical Sensors market is estimated at $0.20 billion ... period 2014-2020 The near future will bring ... of each individual. These sensors can be set to ...
(Date:8/31/2015)... Research and Markets ( http://www.researchandmarkets.com/research/cbgl72/middle_east_and ) has announced the ... Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Middle East & Africa Biomedical Sensors ... a CAGR of 3.26% over the period 2014-2020 ... are adaptable to the genetic formulation of each individual. ...
(Date:8/31/2015)... Portage Biotech Inc. ("Portage" or "the Company") (OTC Market: ... that its wholly owned subsidiary, Portage Pharmaceuticals Ltd. (PPL) ... Investigational New Drug (IND) application for the topical treatment ... a study in a rat model of dry eye ... and a more rapid onset of action than 0.1% ...
Breaking Biology Technology:MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 2MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 3MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 4Mexico Biomedical Sensors Market Report 2015-2020 2Middle East & Africa Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts to 2020 2Portage's PPL will advance its lead candidate PPL-003 to an IND for dry eye disease and uveitis 2Portage's PPL will advance its lead candidate PPL-003 to an IND for dry eye disease and uveitis 3
... CALGARY, Nov. 29 /PRNewswire-FirstCall/ - Oncolytics Biotech ... Coffey, Chief,Scientific Officer of Oncolytics, is scheduled ... 2007 entitled "Large Scale Production Process for,the ... Informa Life,Sciences, 3rd Annual Vaccine Production Conference ...
... properties of a commonly used blue dye could revolutionise ... Advanced Materials. , Scientists have demonstrated that they can ... Phthalocyanine, or MPc, with the use of magnetism. ... researchers claim that the ability to control the magnetic ...
... Calif., Nov. 28 Bionovo, Inc.,(Nasdaq: BNVI ), a ... in the areas of women,s health and cancer, is scheduled ... Conference., The presentation by Tom Chesterman, SVP and CFO ... at 1:30 p.m. local time at the,Millennium Broadway Hotel in ...
Cached Biology Technology:Oncolytics Biotech Inc. to Present at Annual Vaccine Production Conference 2Blue dye could hold the key to super processing power 2Blue dye could hold the key to super processing power 3
... Timp-4 has been reported in heart ... fibroblasts in cell culture conditions. ... TPA stimulates production of TIMP-4 in ... protein levels produced often require concentration ...
Goat polyclonal to HSPC150 ( Abpromise for all tested applications). entrezGeneID: 29089...
Anti-MMP-13 Collagenase-3, amino terminal end of active enzyme; rabbit host...
...
Biology Products: