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LONDON michael kors selma tote uk , March 27 (Xinhua) -- Bigger brains help social primates to make up after a fight, research at the University of Manchester revealed Monday.

Social primates with bigger brains are likely to use their added cerebral power to cope with conflict, the study showed.

The university said the surprise findings suggest that social skills, which are very sophisticated in primates michael kors jet set tote large black , help individuals cope with aggression and competition caused by living in large groups.

The study, published in the journal Behavioral Ecology, was led in Manchester by Veronica Cowl, a PhD student based in the university's School of Earth and Environmental Sciences.

Cowl looked at the associations between group size michael kors jet set satchel black , brain size and behaviours that are recognised as "prosocial" and "cooperative", such as working together as a group on a collective action, and their relationship to aggressive behaviours that led to incidents of conflict, termed as agonism.

The three species with very high levels of agonism are chacma baboons michael kors jet set large crossbody black , capuchins and a population of black and white ruffed lemurs.

The species with the lowest rates of agonism were brown lemurs and black howler monkeys.

Earlier studies examined how variation primate agonism related to ecological variables, such as risks from predators or food competition.

The Manchester team was interested in explaining why there is strong association between brain size and group size in primates.

Cowl said: "Our research indicates that the increase in brain size is likely to be a consequence of high levels of competition in large groups. It seems that large brained primates have had to develop strategies to cope with high rates of conflict."

"This is of particular importance as primates are noted for their social cognition -- for example, they are able to understand social relationships between individuals, track social relationships and can develop social strategies."

The Manchester researchers also saw different patterns between the overall level of agonism in a group and the amount of conflict between any two individuals within the group.

Cowl added that this suggests that either individuals in larger groups can buffer aggression better or that only species with low levels of dyadic conflict can maintain large groups and stable social relationships.

Dr Susanne Shultz michael kors hamilton satchel black , the senior author on the paper, said: "Now we have shown that big brains, big groups and conflict are related to each other, this helps to answer an enduring puzzle about why primates in larger groups have larger brains.

"It seems large-brained primates have evolved to cope with the challenges of conflict and coordination inherent in living in large groups."

Cyclists compete during the fifth stage of international cycling race tour of Croatia 2017 in Boljunsko Polje michael kors hamilton tote brown , Croatia, April 22, 2017. Jaime Roson Garcia of Caja Rural team of Spain ranked the first in the fifth stage with 21 hours 55 minutes and 17 seconds. (XinhuaDusko Marusic)

China launches first cargo spacecraft Tianzhou-1

Terraces shrouded by clouds in south China's Guangxi

China-made C919 passenger jet to take off soon

Redbud flowers in full bloom in S China

In pics: scenery of Baiyangdian in Xiongan New Area

In pics: tea garden in central China's Henan

Peach blossoms on terrace fields in Guyuan, NW China's Ningxia

Stewardesses for high-speed train take part in training program in Harbin

LONDON michael kors hamilton tote uk , Aug. 7 (Xinhua) -- Olympic champion Faith Kipyegon ofKenya won the women's 1500 meters title at the World AthleticsChampionships here on Monday.

Kipyegon, 23, the silver medalist two year ago in Beijing,pulled away in the last 50 meters to clock four minutes 2.59seconds for the gold medal.

American Jennifer Simpson michael kors wallets sale uk , who won the title in the 2011 worldsand finished second in 2013, took silver in 4:02.76. South Africa'sCaster Semenya, the 2009 world champion and twice Olympic goldmedalist in the 800 meters, outsprinted Britain's Laura Muir andSifan Hassan of the Netherlands michael kors miranda tote sale uk , throwing herself at the line totake bronze. Enditem

By Tao Jun， Dong Hua

HO CHI MINH CITY， May 31 (Xinhua) -- With Thai retail giants buying leading supermarkets in Vietnam， consumers have more choices， but Vietnamese enterprises and management bodies are more worried.

To date， Thailand's big firms have wholly or partly owned many well-known supermarkets in Vietnam， including Big C， Mega Market (formerly Metro)， Robins， B's Mart and Nguyen Kim， creating opportunities for Thai goods to penetrate more deeply into the Vietnamese market. Most recently， Central Group poured over 1 billion U.S. dollars into buying Big C.

Vu Vinh Phu， Chairman of the Hanoi Supermarkets Association， stated that such well-known supermarkets will become Thai products' official distribution channels. According to him， Thai goods are winning Vietnamese people's confidence because many consumers prefer products made in Thailand to those in some other countries， while they have good models， big promotions and discounts.

Now， 80 percent of goods on sales in supermarkets are Vietnamese products， but this percentage will drop， Phu said. Some supermarkets such as Aeon and Lotte Mart have already strengthened sales of Thai goods.

Besides， more and more Vietnamese companies are being established to import and distribute Thai consumer goods. They directly sign contracts with some brands in Thailand and then distribute them to agents in Vietnam. For example， Phu Minh Production and Trading Company imports such goods as glassware， foodstuffs， plastic-ware， clothes， cosmetics and detergents produced at factories in Thailand and then distribute them via retail networks in Vietnam.

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