Everybody is happy as his pay rises．Yet pleasure at your own can disappear if you learn that a fellow worker has been given a bigger one．Indeed, if he is known as being lazy, you might even be quite cross．Such behavior is regarded as "all too human", with the underlying belief that other animals would not be able to have this finely developed sense of sadness．But a study by Sarah Brosnan of Emory University in Atlanta, Georgia, which has just been published in Nature, suggests that it is all too monkey, as well．

    The researchers studied the behaviors of some kind of female brown monkeys．They look smart． They are good-natured, co-operative creatures, and they share their food happily．Above all, like female human beings, they tend to pay much closer attention to the value of "goods and services" than males．

    Such characteristics make them perfect subjects for Doctor Brosnan's study．The researchers spent two years teaching their monkeys to exchange tokens （奖券） for food．Normally, the monkeys were happy enough to exchange pieces of rock for pieces of cucumber．However, when two monkeys were placed in separate and connected rooms, so that each other could observe what the other is getting in return for its rock, they became quite different．

    In the world of monkeys, grapes are excellent goods （and much preferable to cucumbers）．So when one monkey was handed a grape in exchange for her token, the second was not willing to hand hers over for a mere piece of cucumber．And if one received a grape without having to provide her token in exchange at all, the other either shook her own token at the researcher, or refused to accept the cucumber．Indeed, the mere presence of a grape in the other room （without an actual monkey to eat it） was enough to bring about dissatisfaction in a female monkey．

    The researches suggest that these monkeys, like humans, are guided by social senses．In the wild, they are co-operative and group-living．Such co-operation is likely to be firm only when each animal feels it is not being cheated．Feelings of anger when unfairly treated, it seems, are not the nature of human beings alone．Refusing a smaller reward completely makes these feelings clear to other animals of the group．However, whether such a sense of fairness developed independently in monkeys and humans, or whether it comes from the common roots that they had 35 million years ago, is, as yet, an unanswered question．

    Still seeking a destination for your weekend break? There are some places which are probably a mere walk away from your college.

King's Art Centre

    A day at the Centre could mean a visit to an exhibition of the work of one of the most interesting contemporary artists on show anywhere. This weekend tees the opening of an exhibition of four local artists.

You could attend a class teaching you how to 'learn from the masters' or get more creative with paint —- free of charge.

    The Centre also runs two life drawing classes for which there is a small fee.

The Botanic Garden

    The Garden has over 8,000 plant species; it holds the research and teaching collection of living plants for Cambridge University.

    The multi-branched Torch Aloe here is impressive. The African plant produces red flowers above blue-green leaves, and is not one to miss.

    Get to the display house to see Dionaea muscipula, a plant more commonly known as the Venus Flytrap that feeds on insects and other small animals.

    The Garden is also a place for wildlife-enthusiasts. Look for grass snakes in the lake. A snake called 'Hissing Sid' is regularly seen lying in the heat of the warm sun.

Byron's Pool

    Many stories surround Lord Byron's time as a student of Cambridge University, Arriving in 1805, he wrote a letter complaining that it was a place of "mess and drunkenness". However, it seems as though Byron did manage to pass the time pleasantly enough. I'm not just talking about the pet bear he kept in his roans. He spent a great deal of time walking in the village.

It is also said that on occasion Byron swam naked by moonlight in the lake, which is now known as Byron's Pool. A couple of miles past Grantchester in the south Cambridgeshire countryside, the pool is surrounded by beautiful circular paths around the fields. The cries of invisible birds make the trip a lovely experience and on the way home you can drop into the village for afternoon tea. If you don't trust me, then perhaps you'll take it from Virginia Woolf一—over a century after Byron, she reportedly took a trip to swim in the same pool.

    Early birds-people who feel most energetic in the morning-tend to make healthier food choices throughout the day than night owls(夜猫子) , according to a new study.

    "Evening types had more irregular meal times," notes study author Mirkka Maukonen, studying human nutrition and obesity(肥胖) in Finland.

    Her study focused on people's risk of heart disease and their eating habits. Participants described when and what they had eaten during the past two days.

Maukonen's team then looked at l,854 people's lifestyle. After analyzing the data, the researchers found that both morning and evening people consumed approximately the same number of calories over a whole day.  However, night owls tended to eat their meals later than early birds. Before 10:00 am, night owls consumed less food than early birds. More of their calories came from sugar. After 8:00 pm, the night owls ate more sugar and fat. Meanwhile ,early birds ate more protein during both the morning and the evening hours.

    "Night owls tend to be less healthy than early risers," notes Courtney Peterson who studies diet and meal timing. "They are more likely to get heart disease or cancer. The fact that night owls tend to eat more junk food probably plays a role," Peterson says. "Other factors(因素) also can ruin a night owl's health. Night owls generally sleep worse," says Peterson. "Poor sleep has been linked to unhealthy food choices. "

    Peterson and Maukonen say night owls tend to have poor eating habits. But that doesn't necessarily mean that being a night owl makes a person a poor eater. It could be the reverse- eating poorly could affect people's sleep habits.

"The new findings should serve as a wake-up call to night owls. For them, the new results should encourage paying attention to healthier lifestyle choices," says Maukonen. 28. How did Maukonen do research about people's risk of heart disease?

    When I was only 3 years old, my mother taught me to memorize and recite poems. She was my first teacher of the arts, and my father was the first to appreciate my performance. Even at that young age, I had a simple understanding of how art and culture affect us as human beings and how we can connect to each other through the arts, which shapes my life to this day.

    When I was growing up, my parents supported my interest in taking acting classes and doing community theater. Their faith in me and the professional（专业的）training I was getting from my theater teachers gave me a sense of purpose and a sense of self-confidence. I learned what artistic achievement actually was and what hard work the business was. While many people see the rosy picture to our business, I was really learning what it would require for me to become a professional.

    I became an actress, but arts education isn't just about preparing our young people for a job in the arts. I recently talked to some of the kids attending theater education. Some of them want to work in theater, and some don't. They are learning not only theater skills, but also about the world around them. They learn about discipline（纪律）and hard work and what's required and what they have to do to bring themselves to the work. They learn how they can be of service in the world through the arts. They learn how to work with a team. By studying the arts, these students are open to worlds and lives that they might not have any other way of knowing about or any other way to connect with in their lives the way they are right now.

    These young people are our future. We are passing the torch to them. And I think that's one of the most important reasons why we need to foster（培养）the arts.

    Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientists have produced a new map that provides a detailed picture of the oceans. The map is expected to help oceanographers (海洋学家), industry and governments.

    The new map is twice as detailed as the map made 20 years ago. David Sandwell is a geophysics professor at the University of California. He and other scientists worked on the mapping project. He says they turned to space to look deeper into the ocean.

    The scientists collected and studied information from two satellites. Some of the data came from the European Space Agency's Cryo-2 satellite. It was placed in Earth's orbit to watch sea ice. The other satellite is the American space agency's Jason-1. It is studying the surface of the oceans. Scientists combined the satellite data with images gathered by sonar (声波定位仪) equipment on ships. Sonar works by sending sound waves through the water. When the sound waves hit an object, its presence is confirmed.

    The new map shows the sea floor as it has never been seen before. It shows thousands of underwater mountains and places where continents pulled apart. It shows where earthquakes were active many years ago. They all are buried deep underneath the ocean floor.

    David Sandwell says the map is a powerful tool for fisheries, those interested in protecting the environment and for oil exploration.

    “The petrol exploration industry is interested in how to reconnect the continents, bring them back together tectonically so you can map the basins （盆地）on one continental edge—say, Africa—and use that to establish where the similar basin would be on the other continental edge in South America.”

    If scientists know that information, they may be able to find oil fields. The new data also will help scientists improve their estimates of ocean depths. This information can help ships travel safely and improve military operations and scientific projects worldwide.

    Mr. Sandwell thinks scientists will make many more discoveries as they examine the new map and the information it provides.

    Shark nets in place across Australia, specifically in New South Wales(NSW) and Queensland, to protect beachgoers should be dropped as they have caused more harm than good, a study has found.

    The measures was carried out by some governments, including nets and traditional drum lines, and provided beachgoers with a false sense of safety. The study found the effectiveness if nets was difficult to evaluate, while the significant damage they cause to other marine(海生的)wildlife was clear. Researches desire for non-deadly shark control measures such as eco barriers, sonar(声呐)technology, and various shark-spotting techniques.

    Researchers said while the risk coming across a shark was rare, any shark-related deaths and injuries caught huge public and media attention.

    One of the arguments in support of using shark nets is that just one shark-related death has been reported in Queensland since the 1960s. Similarly, since the 1930s, NSW has had only one shark-related death. But there have been at least 13 people killed by sharks at beaches without nets in the NSW north coast over the past two years.

    The Human Society International' head of campaigns, Nicola Beynon, said the government needed to move away from outdated methods. Deadly shark nets and drum lines are more than 50 years behind scientific and animal welfare standards for dealing with marine wildlife,” said Beynon.

    The NSW Greens' marine spokesman, Justin Field, said, People are 100 times more likely to drown at the beach than to be killed by a shark in Australia. Therefore, millions of dollars going into the shark net program should be directed to observation towers for our lifeguards and improving the beach devices.”