Navigation Links
New book further supports controversial theory of 'Man the Hunted'
Date:8/20/2008

d cats and many other mega-sized carnivores, reptiles and raptors. Australopithecus afarensis didn't have tools, didn't have big teeth and was three feet tall. He was using his brain, his agility and his social skills to get away from these predators. "He wasn't hunting them," says Sussman. "He was avoiding them at all costs."

Approximately 6 percent to 10 percent of early humans were preyed upon according to evidence that includes teeth marks on bones, talon marks on skulls and holes in a fossil cranium into which sabertooth cat fangs fit, says Sussman. The predation rate on savannah antelope and certain ground-living monkeys today is around 6 percent to 10 percent as well.

Sussman and Hart provide evidence that many of our modern human traits, including those of cooperation and socialization, developed as a result of being a prey species and the early human's ability to out-smart the predators. These traits did not result from trying to hunt for prey or kill our competitors, says Sussman.

"One of the main defenses against predators by animals without physical defenses is living in groups," says Sussman. "In fact, all diurnal primates (those active during the day) live in permanent social groups. Most ecologists agree that predation pressure is one of the major adaptive reasons for this group-living. In this way there are more eyes and ears to locate the predators and more individuals to mob them if attacked or to confuse them by scattering. There are a number of reasons that living in groups is beneficial for animals that otherwise would be very prone to being preyed upon."


'/>"/>

Contact: Neil Schoenherr
nschoenherr@wustl.edu
314-935-5235
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Further development of Water Framework Directive necessary
2. Further breakthroughs for breast cancer patients
3. Worlds largest investor coalition seeks further disclosure on climate change and shareholder value
4. Immunosuppressant further linked to birth defects
5. New study casts further doubt on risk of death from higher salt intake
6. New CITES quotas allow more caviar export, further jeopardize endangered sturgeon
7. UNC, Caltech research finds further evidence for genetic contribution to autism
8. Grant supports study of abnormal ring-shaped chromosomes
9. Fossil record supports evidence of impending mass extinction
10. Gene study supports single main migration across Bering Strait
11. Study supports reason for concern in childhood and adolescent obesity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New book further supports controversial theory of 'Man the Hunted'
(Date:12/17/2014)... DUBLIN , Dec. 16, 2014 Research ... announced the addition of the "Global Chemical ... http://photos.prnewswire.com/prnh/20130307/600769 ... is the increasing demand for medical sensors in ... patient data for quick and correct diagnosis during ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has ... in the APAC Region 2015-2019"  report to their ... in this market is advances in technology. With ... upgrade biometric solutions to the latest standard that ...
(Date:12/11/2014)... PAUL, Minn. , Dec. 10, 2014 /PRNewswire/ ... wireless physiologic monitoring, has released a new series ... needs of preclinical toxicology researchers. M series, part ... help toxicologists collect the best possible physiologic data ... Adding functional endpoints to toxicology studies ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
... Vision, Inc.,(OTC Bulletin Board: INVI), a leading global ... has received an order for the,Company,s SharpEye(TM) system ... large,computer manufacturer. The SharpEye product provides analysis of ... quality in the manufacturing,process, and the system will ...
... Corporate Safe Specialists (CSS),announces an addition to its ... as National Account Manager., (Photo: http://www.newscom.com/cgi-bin/prnh/20080114/AQM106 ... Currey, Sales Manager of the Company, stated, "the ... accelerate the growth we,ve seen in,networked safe sales. ...
... STATION A specially developed carrot has been produced to ... A&M AgriLifes Vegetable and Fruit Improvement Center studied the calcium ... net increase in calcium absorption. The research, which was done ... carrot to the diet can help prevent such diseases as ...
Cached Biology News:Integral Vision, Inc. Announces SharpEye(TM) Order From New Customer 2Corporate Safe Specialists Announces Addition to Sales Team 2Got carrots? Vegetables may have bone to pick as calcium providers 2
(Date:12/19/2014)... 2014 LayerBio is an MIT spin-off ... care. The National Eye Institute (NEI) at the National ... I SBIR grant to develop a drug-eluting intraocular lens ... common cause of vision loss in people over age ... to Dr. Ken Mandell, LayerBio’s Founder and CEO, "There ...
(Date:12/19/2014)... iLab Solutions, the global leader in core ... as the new Director of Institutional Implementations and Sarah ... two new leadership positions were created to support iLab’s ... iLab continues to meet the needs of its growing ... has been deployed at over 450 core facilities across ...
(Date:12/19/2014)... With only 2 weeks left of 2014, ... Biohit products . The product specials include Buy 1 ... Trade-in Program, and free pipette tips. , Sartorius mLINE ... world. They are ideal for lab technicians performing long ... ,     Full volume range of 0.1 uL to 10 ...
(Date:12/19/2014)... , Dec. 18, 2014   ISN has ... Safety Performance Indicators publication series. With data ... activity reported in 2013 within its online contractor management ... safety key performance indicator (KPI) statistics. ... U.S. publication is available in two industry ...
Breaking Biology Technology:LayerBio Awarded NIH Grant to Develop a Drug Delivery Device for Cataract Surgery 2iLab Solutions Announces Two New Leadership Positions to Meet the Needs of Its Growing Customer Base 2Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3
... have unlocked the physics of the perfect pizza toss ... of micro motors thinner that a human hair. , ... Associate Professor James Friend and Senior Lecturer Leslie Yeo, ... from Monash,s Micro/Nanophysics Research Laboratory, then calculated how best ...
... Encorium Group, Inc. (Nasdaq: ENCO ) ... that provides design, development, and management capabilities for clinical ... leading pharmaceutical companies, today announced the signing of approximately ... new business contracts and repeat business to be conducted ...
... ("Sinobiopharma ", or "the Company") (OTC Bulletin Board: SNBP) ... to seven key patents from Company CEO Dr. Lequn ... significantly enhance Sinobiopharma,s ability to execute on its mission ... are for the following:, , ...
Cached Biology Technology:Pizza tossing art unlocks secrets of tiny motors 2Encorium Group Signs Approximately $2.0 Million of New Business Contracts 2Encorium Group Signs Approximately $2.0 Million of New Business Contracts 3Sinobiopharma Secures Rights to Seven Key Patents 2