A new study finds that young females in one group of African chimps(黑猩猩) use sticks as dolls more than their male peers (同龄) do, often treating pieces of wood like a mother chimp caring for a baby. In human cultures around the world, girls play with dolls and pretend that the toys are babies far more than boys do.

    Chimp observations, collected over 14 years of field work with the Kanyawara chimp community in Kibale National Park in Ugandan, provide the first evidence of a nonhuman animal in the wild that exhibits sex differences in how it plays. This finding supports an argument that biology as well as society underlies boys' and girls' different toy preferences.

    Stick play occurred most commonly between ages 3 and 9. Females spent a lot more time carrying sticks than males did. Young male chimps occasionally used sticks to mimic(模仿) childcare. "Far more often, they fought with sticks, an infrequent behavior among females," say Sonya Kahlenberg of Bates College in Lewiston, Maine, and Richard Wrangham of Harvard University.

    "Biological differences between the sexes make female chimps more receptive to stick-mothering than males," says Wrangham.

    Consistent with reported cultural traditions among adult chimps, Kanyawara youngsters learned from each other to play with sticks as if caring for babies. Stick play among young chimps showed no evidence of being directly influenced by older chimps. Child-bearing females never played with sticks and thus didn't model such behavior for younger chimps.

    Young females carried sticks for anywhere from a few minutes to several hours. They often rested in nests with their sticks, sometimes playing with them much as chimp mothers play with their babies though they didn't get any form of teaching from the adults.

    Successful People

    People can succeed in many aspects. Here are some successful people.

    Stephen Hawking

    Much more than the namesake of Into the Universe with Stephen Hawking, Stephen Hawking is one of the most well-known physicists in the world, and he was able to achieve that in spite of being diagnosed with ALS when he was 21. He can now only speak with the assistance of a computer and has been a full-time power chair-user since the 1980s. His disability, however, has never been an excuse to give up on his desire to study the universe, specifically the framework of general relativity and quantum mechanics. His best-selling book, A Brief History of Time, stayed on the Sunday Times bestsellers list for a surprising 237 weeks.

    Franklin Delano Roosevelt

    A beloved U. S president who helped guide the nation successfully through World War II, President Franklin Delano Roosevelt is considered a great president and the entire time he was in office, FDR was also a wheelchair-user. Upon starting his political career in excitement, he got illness while drinking water at a campground and became disabled from the waist down. Even though it wasn't made public until years later that he couldn't walk for fear of the public doubting his ability, FDR proved disability wasn't a roadblock to being a great leader.

    Marlee Matlin

    An Academy Award winning actress for her leading role in Children of a lesser God, Marlee Matlin is one of the most successful actresses who are deaf. She has been deaf since she was 18 months old. She also received a Golden Globe Award for her role in Children of a lesser God. Since receiving her Oscar, Marlee has been a character on many TV shows including The Word and Law & Order: SVU, and has appeared on reality shows such as The Apprentice and Dancing with the Stars.

    Steven Wonder

    One of the most beloved singers alive today, Stevie Wonder is a musician, singer and songwriter who was born blind. He was born six weeks early. The blood vessels at the back of his eyes had not yet reached the front and stopped their growth, therefore leading to his blindness.

    Considered a child talent, Stevie signed with his first record label at age 11, Motown's Tamla label, and he's been performing since. Over his wildly successful music career, Stevie has recorded more than 30 U. S. top ten hits, including his singles “Superstition” “Sir Duke” and “ I Just Called to Say I Love You”.

    Why do Americans struggle with watching their weight, while the French, who consume（消耗） rich food, continue to stay thin? Now a research by Cornell University suggests how life style and decisions about eating may affect weight. Researchers concluded that the French tend to（往往，倾向于） stop eating when they feel full. However, Americans tend to stop when their plate is empty or their favorite TV show is over.

    According to Dr. Joseph Mercola, a health expert, the French see eating as an important part of their life style. They enjoy food and therefore spend a fairly long time at the table, while Americans see eating as something to be squeezed（挤出） between the other daily activities. Mercola believes Americans lose the ability to sense when they are actually full. So they keep eating long after the French would have stopped. In addition, he points out that Americans drive to huge supermarkets to buy canned and frozen foods for the week. The French, instead, tend to shop daily, walking to small shops and farmers' markets where they have a choice of fresh fruits, vegetables, and eggs as well as high-quality meats for each meal.

    After a visit to the United States, Mireille Guiliano, author of French Women Don't Get Fat, decided to write about the importance of knowing when to stop rather than suggesting how to avoid food. Today she continues to stay slim and rarely goes to the gym.

    In spite of（尽管） all these differences, evidence shows that recent life style changes may be affecting French eating habits. Today the rate of obesity — or extreme overweight — among adults is only 6%. However, as American fast food gains acceptance and the young reject（拒绝） older traditions, the obesity rate among French children has reached 17% — and is growing.

    Misael is three times the size of other children at his age due to a symdrome(综合症 状) which means he is unable to stop eating.

    He is so heavy that he often stops breathing while sleeping — leaving his parents fearing that one day he may not wake up. His dad Manoel Abreu, 38, said, "Everything is hard for him — he is a baby carrying an adult's weight. His heart must be working under a lot of pressure. If he doesn't get the treatment he requires, there is a very good chance that he will pass away."

    Miseal, from Sanot, Brazil, was born a healthy 6lb 6oz, but immediately he started piling on the pounds. Doctors believe he may be suffering from Prader-Willi symdrome, a rare genetic condition that leaves him with greed. He now weighs a heavy 178lb and is still gaining despite following a low-fat diet and walking for 40 minutes each day.

    Mum Josiane, 37, said, "He has been putting on a lot of weight since he was a baby—even when I was breastfeeding him. But it was only when he was one and a half years old that we began to worry. He was gaining 3kg a month and was starting to get very heavy. We know we could lose him at any time. Sometimes when he is sleeping, I watch him to see if he is breathing. I cry a lot because we want to help him. But I am also very proud of him because he doesn't surrender(投降)."

    Misael visits a doctor every three months to try to control his condition, but currently there is no cure for Prader-Willi symdrome. Paediatric neurologist(儿科神经科专家)

    Lucio said, "Every time we meet, he has put on a lot of weight — sometimes up to 5 kg. I think Misael could get help from someone outside Brazil — both medically and financially — so that he can get the laboratory and genetic testing he needs."

Briton Andy Park has probably the rarest addiction in the world. He's addicted to celebrating Christmas.

Park, 45, is known as "Mr Christmas" in Britain. He has been celebrating the December 25 holiday on a daily basis for the past 12 years. He's eaten 4,380 turkeys and 87,600 pies, drunk 4,380 bottles of champagne (香槟酒), and 5,000 bottles of wine, given 21,900 presents, mostly to himself, and spent a fortune on lights and decorations. His festive craze (狂热) has so far cost all estimated (估算) US $427,500.

"I'm going to be doing it for another 12 years. I've never, ever been bored with it. " he said.

The electrician from Wiltshire, southwest England, starts his day with a big breakfast of six pies and a turkey sandwich before heading off to work.

He finishes work by 11:30 am in order to start roasting a turkey—the traditional Christmas dish.

At 3:00 pm he watches a video of the British Queen's annual Christmas speech to the Commonwealth, glass of wine in hand.

Dinner is turkey, wine and a bottle of champagne.

He lays his present to himself under the Christmas tree at 8:00 pm.

He even insists on a full Christmas dinner if he goes to a restaurant or to a friend's house for dinner.

Park is hoping his love of Christmas can translate into SUCCESS in the music charts when he releases a single. It's Christmas Every Day on December 9. "I want to be No. 1," he said. Before now, he has made unsuccessful singles such as The Christmas Man.

Popularization has in some cases changed the original meaning of emotional intelligence. Many people now misunderstand emotional intelligence as almost everything desirable in a person's makeup that cannot be measured by an IQ test, such as character, motivation, confidence, mental stability, optimism and "people skills." Research has shown that emotional skills may contribute to some of these qualities, but most of them move far beyond skill-based emotional intelligence.

We prefer to describe emotional intelligence as a specific set of skills that can be used for either good or bad purposes. The ability to accurately understand how others are feeling may be used by a doctor to find how best to help her patients, while a cheater might use it to control potential victims. Being emotionally intelligent does not necessarily make one a moral person.

Although popular beliefs regarding emotional intelligence run far ahead of what research can reasonably support, the overall effects of the publicity have been more beneficial than harmful. The most positive aspect of this popularization is a new and much needed emphasis (重视) on emotion by employers, educators and others interested in promoting social well-being. The popularization of emotional intelligence has helped both the public and researchers re-evaluate the functionality of emotions and how they serve people adaptively in everyday life.

Although the continuing popular appeal of emotional intelligence is desirable, we hope that such attention will excite a greater interest in the scientific and scholarly study of emotion. It is our hope that in coming decades, advances in science will offer new perspectives (视角) from which to study how people manage their lives. Emotional intelligence, with its focus on both head and heart, may serve to point us in the right direction.