Navigation Links
Why chimpanzees attack and kill each other
Date:6/21/2010

impanzees go out "on patrol" into the territory of a neighboring chimpanzee community. "Patrollers are quiet and move with stealth," Mitani said. "They pause frequently to scan the environment as they search for other chimpanzees. Attacks are typically made only when patrolling chimpanzees have overwhelming numerical superiority over their adversaries."

The Ngogo chimpanzees may be at an unusual advantage over their neighbors due to the impressive size of their community, which may explain the surprisingly high level of violence observed, the researchers say. There are more than 150 Ngogo chimpsabout three times the number found in chimp communities studied elsewhere.

Despite humans' close evolutionary ties with chimpanzees, Mitani and his colleagues tend not to think that studies of chimps' aggressive tendencies will reveal much at all about the varied and complex reasons that humans go to war. In fact, they say, the findings may have more to tell us about why humans so often work together.

"Using our results to address an enduring question about why humans are an unusually cooperative species may prove to be a more productive line of inquiry," the researchers write. "Our observations indicate that territorial conflict leads chimpanzees in some groups to cede land to members of other groups as a consequence of lethal coalitionary aggression. In the process, chimpanzees in communities that gain territory obtain increased access to resources that are then available to others in the group. Whether this selective factor can override the fitness costs suffered by individuals who cooperate within groups remains a theoretically and empirically challenging problem."


'/>"/>

Contact: Cathleen Genova
cgenova@cell.com
617-397-2802
Cell Press
Source:Eurekalert

Page: 1 2

Related biology news :

1. Fair play in chimpanzees
2. Wild chimpanzees appear not to regularly experience menopause
3. Key impact hunters catalyze hunting among male chimpanzees
4. In a last stronghold for endangered chimpanzees, survey finds drastic decline
5. Genetic differences between yeasts greater than those between humans and chimpanzees
6. Rwandas Forest of Hope to expand by 21 percent, begin corridor for endangered chimpanzees
7. Chimpanzees help each other on request but not voluntarily
8. Human derived stem cells can repair rat hearts damaged by heart attack
9. Reversing cognitive deficits: Injectable antibody may attack source of problem
10. New approach for attacking lupus identified
11. Human deaths from shark attacks hit 20-year low last year
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... a dreaded bacterium that can be found in both ... 28 persons in Denmark have been infected with ... have died. , The bacterium is notoriously difficult to ... adapt to changes in its surroundings, says Associate Professor ... from the Department of Biochemistry and Molecular Biology, she ...
(Date:8/26/2014)... Researchers at Washington University in St. Louis have developed ... bones prone to tearing or breaking. The technology, which ... patients, one day may help pinpoint minor strains and ... problems occur. , The research is available online Aug. ... Interface , which publishes research at the nexus of ...
(Date:8/26/2014)... obtaining an unprecedented view of a type of ... of neurological illnesses, including Alzheimer,s disease, Parkinson,s disease, ... stroke. , The team of biologists at Cold ... Energy,s Advanced Photon Source at Argonne National Laboratory ... NMDA (N-methyl, D-aspartate) receptor should serve as template ...
Breaking Biology News(10 mins):Researchers discover why Listeria bacterium is so hard to fight 2Researchers discover why Listeria bacterium is so hard to fight 3New technology may identify tiny strains in body tissues before injuries occur 2New technology may identify tiny strains in body tissues before injuries occur 3Unprecedented detail of intact neuronal receptor offers blueprint for drug developers 2Unprecedented detail of intact neuronal receptor offers blueprint for drug developers 3
... from McGill/MUHC and the CHUM have been awarded ... Institutes of Health Research (CIHR) to continue their ... during sexual intercourse. The new funding will allow ... and statistician/epidemiologists, to root-out the cause of a ...
... at Case Western Reserve University School of Medicine and University ... (FDA) has approved plans to begin a study to evaluate ... to treat chronic ischemia, a serious form of heart disease. ... to test the safety of the procedure. It will ...
... leading neuroscientist at MIT and one from the University ... Nov. 4 special issue of Science dedicated to the ... "protocortex" theories of brain development are dead. , The ... neurons divided into distinctly separate areas that process particular ...
Cached Biology News:MUHC investigators search for the root of sexual pain in women 2Feds give researchers ok for safety test of adult stem cells in patients with heart disease 2MIT researcher presents new view of how the cortex forms 2
(Date:8/27/2014)... 2014 Reportlinker.com announces that a new ... Global Chelating Agents Market 2014-2018 ... Chelating Agent A chelating agent is a chemical ... ions, thereby forming a metal-ion complex. It reduces ... chemical processes, formulations, and the environment by chelating ...
(Date:8/27/2014)... Aug. 27, 2014 Guggenheim Securities, the investment ... announced the hiring of veteran equity analyst Charles "Tony" ... Mr. Butler will focus on the biotech/biopharma sector. ... wealth of experience and a broad network of relationships ... Managing Director and Head of Equities at Guggenheim Securities. ...
(Date:8/27/2014)... 2014  ARCH Venture Partners, one of the ... development of seed and early-stage advanced technology companies, ... with more than $400 million in subscriptions. ARCH ... target by more than $150 million. ... and potential of our approach to finding and ...
(Date:8/27/2014)... August 27, 2014 According to the ... to reshape the look and feel of markets for ... for higher-quality ingredients will push for more branded, science-backed ... have experienced strong market growth in the last decade ... their food and cosmetics to fit a more ‘wellness’ ...
Breaking Biology Technology:Global Chelating Agents Market 2014-2018 2Global Chelating Agents Market 2014-2018 3Global Chelating Agents Market 2014-2018 4Guggenheim Securities Hires Analyst Charles "Tony" Butler to Expand Healthcare Coverage 2Latest ARCH Venture Partners Fund Closes Above $400 Million 2Latest ARCH Venture Partners Fund Closes Above $400 Million 3Daring to be Different Raw Materials & Ingredient Supply Shortage Fuels Vital Force™ Technology New Ingredient Enhancements 2Daring to be Different Raw Materials & Ingredient Supply Shortage Fuels Vital Force™ Technology New Ingredient Enhancements 3
... Whitewater, Wis. - The University of Wisconsin-Whitewater has ... what is now known as the Information Technology Infrastructure ... Computer End-User Technologies program, is a product of joint ... will begin this fall semester. It places a far ...
... Metavante Corp., the financial technology subsidiary of Marshall ... June, of Wayne, Pa.-based GHR Systems, Inc. , ... mortgage and consumer finance industries that offers point-of-sale products ... Systems will become a Metavante subsidiary. , ,GHR's client ...
... - Southern Wisconsin's biotech infrastructure has prompted a ... an operating facility that could employ approximately 200 people. ... the southern tier of Wisconsin to manufacture systems used ... CEO Dan Miller. It's a product that company representatives ...
Cached Biology Technology:Whitewater upgrades tech degree program 2Whitewater upgrades tech degree program 3Minneapolis company sets sights on southern Wisconsin 2Minneapolis company sets sights on southern Wisconsin 3
... Best: DASGIPs Process Control integrates Process ... comprehensive documentation for cultivation processes. A ... pH, dissolved oxygen, temperature and agitation ... Profiles, e.g. constant or scheduled media ...
... LC Sciences provides a genome-wide microRNA ... and proprietary probe design, which enable highly ... (1-3). We have standard arrays for mature ... latest version of the Sanger miRBase database ...
... synthetic peptide whose sequences are derived from mouse resistin protein. ... - S - M - P - L - C - ... - D - K - K - I - K - ... used for neutralization and control experiments with the polyclonal antibody that ...
... Imaging System, Basic Package Superior Protein ... Range: The ProXPRESS 2D Proteomic Imaging System ... for both proteomic and general life science ... enabling the use of all dyes in ...
Biology Products: