Nowadays more and more people are talking about geneticallymodified foods ( GM foods). GM foods develop from genetically modifiedorganisms (有机体), which havehad specific changes introduced into their DNA by genetic engineeringtechniques. These techniques are much more precise where an organism is exposedto chemicals to create a non­specific but stable change. For many people, thehigh­tech production raises all kinds of environmental, ethical, health andsafety problems. Particularly in countries with long farming traditions, theidea seems against nature.

In fact, GM foods are already very much a part of our lives.They were first put on the market in 1996. A third of the corn and more thanhalf the cotton grown in the U. S. last year was the product of biotechnology,according to the Department of Agriculture. More than 65 million acres ofgenetically modified crops will be planted in the US this year. The geneticgenie is out of the bottle.

However, like any new product entering the food chain, GM foodsmust be subjected to careful testing. In wealthy countries, the debate aboutbiotech is not so fierce by the fact that they have a large number of foods tochoose from, and a supply that goes beyond the needs. In developing countriesdesperate to feed fast­growing and underfed populations, the matter is simplerand much more urgent: do the benefits of biotech outweigh the risks?

The statistics on population growth and hunger are disturbing.Last year the world's population reached 6 billion. The UN states that nearly800 million people around the world are unhealthy. About 400 million women ofchildbearing age don' t have enough iron, which means their babies are exposedto various birth defeats.As many as 100 million children suffer from vitamin Adeficiency, a leading cause of blindness.

How can biotech help? Genetic engineering is widely used toproduce plants and animals with better nutritional values. Biotechnologistshave developed genetically modified rice and they are working on other kinds ofnutritionally improved crops. Biotech can also improve farming productivity inplaces where food shortages are caused by crop damage attributable to drought,poor soil and crop viruses.

    In some science-fiction movies, robots refuse to die no matter how people fight back (反击). Now, it has turned into a fact. For the first time, researchers have created a robot that can take a beating (挨打) and keep on working. Developed by scientists from Cornell University and the University of Vermont, the new robot looks like a spider with four legs.

    Until now, even the most advanced robot was almost certain to break down when damaged. That's because its computer doesn't know how to operate the machine after its shape has been changed.

    To solve this problem, the scientists put some sensors (传感器) into the machine. The sensors can read how the machine is working and send signals to the computer.

    Using this information, the system follows a new way to tell the machine's shape at any given moment. The computer considers a lot of possible next steps, and it calculates how best to move the robot forward the longest possible distance, before trying to move it again.

    The new technology is a major advance in robotics (机器人技术), scientists say. It may someday help researchers create better artificial arms and legs that give new freedom to people who lack them. The new knowledge might also help scientists understand how people and animals tell their own sense of place in space.

     “Designing robots that can fit changing environments has been a difficult problem,” says scientist Olaf Sporns of Indiana University. “This work provides a new way toward solving this important problem.”

    A group of people asked this question to a group of 4-to-8-year-old children. “What does love mean?” The answers were surprising. The children would answer like they did below.

    “When my grandmother hurt her knees, she couldn't bent (弯腰) over and paint her toenails (脚指甲) any more. So my grandfather does it for her all the time, even when his hands hurt too. That's love.” Rebecca–age 8

    “Love is when someone hurts you. And you get so mad but you don't shout at them because you know it would hurt her feelings.” Samantha–age 6

    “Love is what makes you smile when you're tired.” Terri–age 4

    “I let my big sister pick on (捉弄) me because my mum says she only picks on me because she loves me. So I pick on my baby sister because I love her.” Bethany–age 4

    “I know my older sister loves me because she gives me all her old clothes and has to go out and buy new clothes.” Lauren–age 4

    “Love is when Mommy gives Daddy the best piece of chicken.” Elaine–age 5

    “My mommy loves me more than anybody. You don't see anyone else kissing me to sleep at night.” Clear–age 5

    “You really shouldn't say ‘I love you' unless you mean it. But if you mean it, you should say it a lot. People forget.” Jessica–age 8

    The summer holidays are coming up. It's time to fill the bookshelves with quality literature for the kids. Here are some great books.

    Josephine Wants to Dance by Jackie French

    Price: $14.99 (for ages 4+)

    Josephine is a kangaroo who loves to dance. Her little brother, Joey, tells her that kangaroos don't dance; they jump. But Josephine continues to point her toes and leap through the air. When a ballet group comes to town and the lead ballerina (芭蕾舞演员) is injured, Josephine is called upon to help save the day. Can she do it, and, more importantly, does it matter that she's a kangaroo?

    House of Secrets by Chris Columbus

    Price: $19.99 (for ages 9+)

    The Walker kids —Caroline, Brendan and Nell—may have saved the world, but they can't save their home and must leave Kristoff House. Things can't get any worse, but then it turns out that the Wind Witch is still alive and planning an attack. To defeat her, the Walkers must return to the book world. The Walkers always help each other, but they must do it alone in their most important mission yet. And this time, if they fail, there's no chance of coming back.

    Edge of Extinction Book 1 by Laura Martin

    Price: $16.00 (for ages 9+)

    If you like The Land of the Dinosaurs, you will love this book. Two hundred years ago, the first dinosaur was successfully cloned (克隆). Soon after, humans realized they'd made a big mistake. Thirteen-year-old Sky Mundy's father suddenly disappeared five years ago. Along with her best friend， Shawn， she steps out into the world above --a world of dinosaurs --to look for him. Then she learns that everything she's been taught has been a lie.

    Kirby Wildlife Park — Keeper Experience

    Due to the large number of inquiries from people interested in working with animals, Kirby Wildlife Park has set up the unique 'Keeper Experience' package. The fantastic experience is available to anyone over the age of 18 who is reasonably fit. We regret that for health and safety reasons, participants who are pregnant, in a wheelchair or suffering from illnesses cannot take part.

A typical day

9:15        Arrival

9:30         Health and Safety Briefing

10:00        Apes and Monkeys

    While cleaning out the enclosure (围场) you will find out about how enclosures are enriched with novel items and new smells to stimulate (刺激) the animals' senses and imitate their natural environment.

12:00       Lunch

14:00        Big Cats

    On the highlight of most volunteers' day, you will feed the cats and learn about their nutritional needs. The keeper will give you an introduction to how cat behaviour can be read to get an idea of their welfare and health.

16:30        Meet the Team

    Meet more of the staff and learn how you can get further involved with work at the park. Learn about our animal adoption plan, what it takes to be a good keeper and where to obtain the right qualifications for a career in animal welfare.

Booking and cancellation

    The Keeper Experience is available on Mondays, Wednesdays and Fridays throughout the year, and must be booked at least two weeks in advance. Full payment is needed when booking.

    Cancellations must be made more than fourteen days before the event, or you won't receive a full refund.

In recent years, labels have increasingly been used by the food industry. Whether "non-GMO（转基因）"or"zero trans fat","no added hormones" or"sugar-free", consumers are demanding more information about what's in their food.

A report by Nielsen found that 39 percent of consumers would switch from the brands they currently buy to others that provide clearer, more accurate product information. Food manufacturers are using the new labels to meet consumers' demand, with an eye towards giving their products a leg up over the competition, and their bottom lines a boost as well.

On its face, the new marketing strategy makes sense. But these so-called "absence claims" labels are harmful both to the consumers who purchase the products and the industry that supplies them. For example, Hunt's put a "non-GMO" label on its tomatoes a few years ago — despite the fact that, at the time, there was no such thing as a GMO tomato on the market. Over the long term, this strategy will have the opposite effect: by creating fear, we run the risk of damaging consumers' trust.

Eventually, it becomes a question in consumers' minds: Should I have ever been eating these foods in the first place? By purchasing and consuming these types of products, have I already done some kind of harm to me?

For food manufacturers, it will damage consumers' trust, which in turn would lower sales for the whole food industry. And this isn't just supposition. A recent study by a group of academics at the University of Delaware found that "absence claims" labels can stigmatize(污名化)food produced with conventional processes even when there is no scientific evidence that they cause harm.

In addition to the likely negative long-term impact on sales, it sends a message that innovations in farming and food processing are unwelcome, eventually leading to less efficiency, fewer choices for consumers, and, ultimately, more costly food products. Therefore, it's clear that food manufacturers must be careful when using "absence claims" as a marketing strategy. If we allow this kind of label fear-mongering to continue, the losers will be all of us.