When a leafy plant is under attack ，it doesn't sit quietly. Back in 1983, two scientists, Jack Schultz and Ian Baldwin,reported that young maple trees getting bitten by insects send out a particular smell that neighboring plants can get. These chemicals come from the injured parts of the plant and seem to be an alarm.What the plants pump through the air is a mixture of chemicals known as volatile organic compounds,VOCs for short.

Scientists have found that all kinds of plants give out VOCs when being attacked .It's a plant's way of crying out.But is anyone listening?Apparently.Because we can watch the neighbours react.

    Some plants pump out smelly chemicals to keep insects away.But others do double duty .They pump out perfumes designed to attract different insects who are natural enemies to the attackers. Once they arrive, the tables are turned. The attacker who was lunching now becomes lunch.

    In study after study,it appears that these chemical conversations help the neighbors .The damage is usually more serious on the first plant,but the neighbors ,relatively speaking ,stay safer because they heard the alarm and knew what to do.

Does this mean that plants talk to each other? Scientists don't know. Maybe the first plant just made a cry of pain or was sending a message to its own branches, and so, in effect, was talking to itself. Perhaps the neighbors just happened to “overhear” the cry. So information was exchanged, but it wasn't a true, intentional back and forth.

    Charles Darwin, over 150 years ago, imagined a world far busier, noisier and more intimate(亲密的) than the world we can see and hear. Our senses are weak. There's a whole lot going on.

    Foreign drivers will have a pay on-the-spot fines of up to ￡900 for breaking the traffic law to be carried out next month.

    If they do not have enough cash or a working credit card, their vehicles will clamped(扣留) until they pay—and they will face an additional fee of ￡80 for getting back their vehicles.

    The law will also apply to British citizens. The fines will be described officially as “deposits” when the traffic law takes effect, because the money would be returned if the driver went to court and was found not guilty. In practice, very few foreign drivers are likely to return to Britain to deal with their cases.

    Foreign drivers are rarely charged because police cannot take action against them if they fail to appear in court. Instead, officers often merely give warnings.

    Three million foreign-registered vehicles enter Britain each year. Polish vehicles make up 36 percent, French vehicles 10 percent and German vehicles 9 percent.

    Foreign vehicles are 30 percent more likely to be in a crash than British-registered vehicles. The number of crashes caused by foreign vehicles rose by 47 percent between 2003 and 2008. There were almost 400 deaths and serious injuries and 3,000 slight injuries from accidents caused by foreign vehicles in 2008.

    The new law is partly intended to settle the problem of foreign lorry drivers ignoring limits on weight and hours at the wheel. Foreign lorries are three times more likely to be in a crash than British lorries. Recent spot checks found that three quarters of lorries that failed safety tests were registered overseas.

    The standard deposit for a careless driving offence —such as driving too close to the vehicle in front or reading a map at the wheel—will be ￡300. Deposits for speeding offences and using mobile phones will be ￡60. Foreign drivers will not get points as punishment added to their licenses, while British drivers will.

C

    Teens and younger children are reading a lot less for fun, according to a Common Sense Media report published Monday.

    While the decline over the past decade is steep for teen readers, some data in the report shows that reading remains a big part of many children's lives, and indicates how parents might help encourage more reading.

    According to the report's key findings, "the proportion (比例) who say they 'hardly ever' read for fun has gone from 8 percent of 13-year-olds and 9 percent of 17-year-olds in 1984 to 22 percent and 27 percent respectively today."

    The report data shows that pleasure reading levels for younger children, ages2-8, remain largely the same. But the amount of time spent in reading each session has declined, from closer to an hour or more to closer to a half hour per session.

    When it comes to technology and reading, the report does little to counsel(建议)parenst looking for data about the effect of e-readers and tablets on reading. It does point out that many parents still limit electronic reading, mainly due to concerns about increased screen time.

    The most hopeful data shared in the report shows clear evidence of parents serving as examples and important guides for their kids when it comes to reading. Data shows that kids and teens who do read frequently, compared to infrequent readers, have more books in the home, more books purchased for them, parents who read more often, and parents who set aside time for them to read.

    As the end of school approaches, and school vacation reading lists loom(逼近)ahead, parents might take this chance to step in and make their own summer reading list and plan a family trip to the library or bookstore.

    Over the past few years, smart home tech has become more and more accessible and it's increasingly easy to find that you've bought a product that includes smart home features. So what does a modem smart home look like, and how can you start building one? You could get to start making your home smarter by the following gadgets.

    Ecobee 4

    Measuring both occupancy and temperature, its sensors signal your Ecobee to automatically switch to the right mode.

    It only takes about 30 minutes, thanks to an easy-to-follow installation guide and an in-app step-by-step walkthrough.

    Easily adjust temperature using your voice with built-in Alexa or from wherever you are using your mobile devices.

    Amazon Smart Plug

    Amazon Smart Plug works with Alexa to add voice control.

    Schedule lights, fans, and appliances to turn on and off automatically, or control them remotely when you're away.

    It's simple to set up and use. Plug in, open Alexa app, and start using your voice.

    The Philips Hue White Smart Bulb

    It works with Amazon Alexa to support dimming through voice control.

    Schedule your own custom lighting scenes. Set the smart bulbs to turn on and off at a pre-set time.

    To install, simply screw (拧) the smart bulbs into your desired light location.

    Control smart-bulb-equipped lamps and overhead lights via the Philips Hue App.

    August Smart Lock Pro

    It works with Alexa for voice control (Alexa device sold separately).

    Control keyless access. It locks automatically behind you, and unlocks as you approach.

    Install in about 10 minutes with just a screwdriver (螺丝刀) .

    Summer Camps

    Make your summer magical with a one-of-a-kind summer camp experience!

Half-day, week-long camps are held from 9 am-12 pm or 1 pm-4pm.

    Daily snacks will be provided and even become part of the hands-on fun!

Session 1—Ocean Commotion（暴动）

    Set sail for fun and adventure on the deep blue sea! Campers explore uncharted land at The Magic House and discover something fishy as they come into the exciting world of sea creatures.

    June 6-10

    June 13-17

    June 20-24

Session 2—Super kids Explore Earth

    Campers become superheroes to the earth as they learn about the environment and discover how to use their super powers to protect it! During this action-packed week, campers will explore the earth from the sky to the sea and participate in fun, earth-friendly activities such as turning trash into treasure.

    June 27-July 1

    July 11-15

    July 18-22

Session 3—Once Upon A Time

    At this unique fairy tale-themed camp, campers have a magical, make-believe adventure through the pages of some of their favorite storybooks. Campers experience gaint-sized fun as they use their imaginations to travel to places found only in fairy tales.

    July 25-29

    August 1-5

    August 8-12(am sessions only)

    All campers must be registered in advance.

Instagram(图片分享社交应用程序)is about to take its biggest step toward removing likes from its platform. After months of testing an option to hide likes in select international markets, Instagram, which is owned by Facebook(FB), has already been testing hiding likes in seven other countries, including Canada, Ireland and Australia. For years, likes have been central to how celebrities, brands, politicians and everyday users experience Instagram and Facebook. It's a way of measuring popularity(名气) and success. But in recent months, Instagram has been rethinking how likes contribute to making its platform more toxic. Now it's considering a change.

The total number of likes on posts — which appear as hearts on the app—will disappear from Instagram's main feed, profile pages and permalink(永久链接)pages. The owner of the account can still see their own likes, but their followers won't know the count.

CNN Business previously spoke with users in countries with the test. The majority felt this move would improve well-being on the app. Instagram is the most harmful social networking app for young people's mental health, such as negatively influencing body image, according to one study.

But other users and psychologists said hiding likes won't fix everything. The test doesn't address some of the key ways that activity on Instagram can influence the well-being of users, including bullying(欺凌), feeling left out and thinking other people's lives are better than their own.

Renee Engeln, a psychology professor at Northwestern University, voiced his opinion that the biggest impact of Instagram is the content and the exposure to this constant stream of perfected images is what seems to hurt psychologically. Plus, users can still see their own likes—and feel badly if their posts don't perform well.