Navigation Links
Helping in a selfish world

Billions of people tuned into recent Live 8 concert broadcasts, some just for the music, others to support the altruistic cause spearheaded by former Boomtown Rat, Sir Bob Geldof. In today's rat-race climate, what makes some of us look out for each other, while others look out for themselves?

According to evolutionary theory, natural selection has designed individuals to behave selfishishly; selfish individuals are likely to end up with more resources and therefore more offspring. But many species (including humans, some rock musicians, politicians, and everyday citizens among them) do co-operate.

Traditionally, scientists have explained the evolution of co-operation using the idea of kin selection. Help to relatives (who share your genes) makes sense if it means your relative will have more children who will carry your genes into the next generation. Therefore, relatives are expected to help more. However, in a study published today in the Proceedings of the Royal Society, McMaster University researchers show that in certain situations the reverse is true: unrelated individuals help more.

Sigal Balshine, associate professor of in the Department of Psychology, Neuroscience & Behaviour at McMaster and her graduate student Kelly Stiver have been studying a small species of African cichlid fish that live in groups with a dominant breeding pair and non-breeding helpers. All individuals (helpers and breeders) co-operate to defend the young and the territory. The researchers combined behavioural observations with genetic analyses of relatedness in these fish groups and found that under specific ecological and demographic conditions unrelated individuals must "pay-to-stay" in the group and therefore may help more.

"This fish species is particularly interesting because breeders and helpers are not close relatives, but they co-operate nevertheless," says Balshine. "We think that unrelated individuals may be required to "pay more" by doing m
'"/>

Source:McMaster University


Page: 1 2

Related biology news :

1. Researchers Closer To Helping Hearing-Impaired Using Stem Cells
2. Harnessing microbes, one by one, to build a better nanoworld
3. Scientists must offer solutions for conserving tropical forests in a rapidly changing world
4. HIV drug resistance increasing in UK and among highest in the world
5. Mapping the protein world
6. Too mellow for our predatory world
7. Replacing insulin is top-ranked breakthrough foreseen for health in developing world
8. Fantastic Voyage: A new nanoscale view of the biological world
9. Unique gene regulation gives chilly bugs survival advantage at bottom of the world
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Helping selfish world

(Date:8/11/2015)... GOTHENBURG, Sweden , August 11, 2015 ... sensor FPC1155. Already received as well as expected revenues in 2015 ... included in FPC,s communicated revenue guidance of approximately 2,200 MSEK for ... is a prominent smartphone manufacturer ... ZUK selected FPC1 155 ...
(Date:8/6/2015)... CITY, Calif. , Aug. 6, 2015 /PRNewswire/ ... Valley) will visit Crossmatch ™ to learn ... networks and protect data. Crossmatch is a world ... whose technologies and expertise are helping federal agencies ... efficiency and security.   "The vast ...
(Date:8/5/2015)... -- According to a new market research ... Vertical (BFSI, Airport, IT & Telecom, Utilities, Education, Defense ... 2020", published by MarketsandMarkets, defines and segments the Physical ... The global PIAM Market is estimated to grow from ... at a CAGR of 14.9 % from 2014 to ...
Breaking Biology News(10 mins):FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2Rep. Honda to Visit Crossmatch in Redwood City 2Physical Identity and Access Management Market Worth $546.2 Million by 2019 2Physical Identity and Access Management Market Worth $546.2 Million by 2019 3Physical Identity and Access Management Market Worth $546.2 Million by 2019 4
... Health & Science University (OHSU) and Intel Corp. ... that advance the field of personalized medicine by ... analyzing a patient,s individual genetic profile. Through a ... and scientists from the two institutions will develop ...
... developers may have a new tool to search for more ... that can model and catalogue the entire set of lightweight, ... The small-molecule universe has more than 10^60 (that,s 1 ... Beratan said that many of the world,s problems have molecular ...
... Philosophical Transactions of The Royal Society Biological Sciences ... a global population that is simultaneously growing and increasing ... and social impoverishment. According to Michael T. ... (WHRC) and one of the issue,s co-editors, "One important ...
Cached Biology News:OHSU teams with Intel to decode the root causes of cancer and other complex diseases 2OHSU teams with Intel to decode the root causes of cancer and other complex diseases 3OHSU teams with Intel to decode the root causes of cancer and other complex diseases 4OHSU teams with Intel to decode the root causes of cancer and other complex diseases 5Scientists map all possible drug-like chemical compounds 2Scientists map all possible drug-like chemical compounds 3Ecology, economy and management of an agro-industrial Amazon frontier 2Ecology, economy and management of an agro-industrial Amazon frontier 3
(Date:8/26/2015)... , Aug. 26, 2015  Platform therapeutic ... it has received a $1.5M Phase II SBIR ... to further develop its therapeutic agent to reduce ... need in end stage renal disease (ESRD) patients ... National Institute of Diabetes and Digestive and Kidney ...
(Date:8/26/2015)... , August 26, 2015 Israel Proves Its ... wins 1 st place  Wayerz comes in 5 ... Israel by venture capital fund JVP, with Chinese ... US, China , Israel , ... .  Impressive achievement for the Israeli representatives in the ...
(Date:8/26/2015)... -- After litigating and negotiating patent infringement claims ... United States patent RE43,651 (the ,651 ... the United States without any admission or concession ... As a result of the parties, settlement, the US District ... dismissed the case without prejudice. Under the ...
(Date:8/26/2015)... ... August 26, 2015 , ... PRC Clinical, ... new business relationships with local sponsors in southern California. The Clinical Trial Management Expert ... development processes and regulatory pathways., , Stem Cell Meeting ...
Breaking Biology Technology:Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 2Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6P2i Settles United States Litigation 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3
... Calif., Aug. 25, 2011 Emmy® and Tony® award-winning ... ) today launch Act 2 Reduce Fractures™, an educational ... for fractures. Earlier this year, Danner was diagnosed with ... to encourage women like her to educate themselves, take ...
... 25, 2011 SyntheMed, Inc. (OTC Bulletin Board: ... announced that its stockholders approved the planned merger with ... today.  In excess of 99% of the votes cast ... merger with Pathfinder was previously announced and is described ...
... Hikma Pharmaceuticals reports lower-than-expected 3.2% increase in revenues ... The international drug developer says that political ... some key countries like Egypt and Tunisia. ... Hikma CEO Said Darwazah says that production is back ...
Cached Biology Technology:Award-Winning Actress Blythe Danner and Amgen Launch Act 2 Reduce Fractures(TM) Educational Campaign 2Award-Winning Actress Blythe Danner and Amgen Launch Act 2 Reduce Fractures(TM) Educational Campaign 3Award-Winning Actress Blythe Danner and Amgen Launch Act 2 Reduce Fractures(TM) Educational Campaign 4Award-Winning Actress Blythe Danner and Amgen Launch Act 2 Reduce Fractures(TM) Educational Campaign 5Award-Winning Actress Blythe Danner and Amgen Launch Act 2 Reduce Fractures(TM) Educational Campaign 6Award-Winning Actress Blythe Danner and Amgen Launch Act 2 Reduce Fractures(TM) Educational Campaign 7SyntheMed, Inc. Announces Stockholder Approval of Planned Merger With Pathfinder, LLC 2SyntheMed, Inc. Announces Stockholder Approval of Planned Merger With Pathfinder, LLC 3
...
... a hydrolytic enzyme that catalyzes the ... glucose, maltose, maltotriose and,dextrins. The level ... the human,body are of clinical importance,1-3 ... enzymes for industry.4, The EnzChek Amylase ...
... The Jouan MSC series of ... comfortable working conditions and certification to ... automatic regulation ensures that the cabinets ... working conditions. Natural lighting, low noise ...
Rabbit polyclonal to STUB1 ( Abpromise for all tested applications). entrezGeneID: 10273 SwissProtID: Q9UNE7...
Biology Products: