Children often suffer pain and insecurity when their parents separate.When my ex-husband and I split up after 10 years of marriage,our daughter was 5 years old and my son only 3.We decided to consult a psychologist about the best way to explain this new situation to the children.

    She shared with us this special story about a land turtle and a sea turtle,which we then used to help them better comprehend. Once upon a time,a land turtle (Mommy) met a sea turtle (Daddy) close to a beautiful shore.Soon they fell deeply in love and decided to get married.For a time,they continued to live at the water's edge so that Mommy could sit on the sand and keep dry and warm,while Daddy sat in the shallow water to keep cool.A few years later two baby turtles arrived (you both!).They were very special indeed and looked a little like each of their parents.

    But as the years went by,Daddy sea turtle started spending more and more time in the ocean as he traveled deeper and deeper to look for pearls.Mommy land turtle also started wandering up into the sands to hunt for food in the woods.Little by little,Daddy and Mommy turtle started to drift further and further apart.Finally one day,Mommy and Daddy turtle decided they didn't want to live together anymore.The little turtles continued to spend time with each of their parents.They made lots of friends with all the fish,dolphins and whales in the ocean and also many friends with the rabbits,deer,and foxes in the woods.In fact they grew up to be a new kind of turtle that could live both in the ocean and on the land.

    Over the years,this tale of the land and sea turtle has helped my children cope with and accept the fact that my marriage to their father was over.They know that we once loved each other very much and they were born out of true love.

    Dubai(迪拜)is one of the economically richest places in the world. With its numerous malls, hotels, and beautiful beaches, Dubai has always been a popular holiday destination. This city was visited by around 5 million tourists each year. The government wanted to increase this number to 15 million. However, Dubai has only 45 miles of coastline, which is nowhere enough for so many people. To solve this problem, an island that looked like a palm tree was built in 2006, and named the Palm Jumeirah.

    The plan for the island was extraordinary. It was to host several hotels, shopping malls, restaurants, and homes. Although the initial plan was to build the island from concrete(水泥), a decision was taken to create it from sand and gravel(砾石), so as to give it a natural look.

    To make sure that this project was a success, the best engineers from across the world were employed. Engineers from Holland formed the majority in this group. To begin with, the engineers calculated the strength of storms at sea, and also the expected amount of rise in water levels due to global warming. And then they found that, the proposed location for the island was neither very wide nor deep.

    One of the difficulties the engineers came across was to put sand on the sea bed to create the breakwater(防浪堤).Finding the right sand for the project was also a daunting task, as the sand from Dubai's deserts was too fine. Instead, sand from the sea was used, as it was coarser(粗糙). Once the breakwater was built, construction of the island began.

    The Palm Island are really impressive in terms of engineering. However, these projects are so large that they may have changed the ecology of the region. Also, an immense amount of money and resources go into maintaining the islands, which is a major concern at the moment. Only time will tell if building the Palm Islands was actually a good decision.

    The city of Amsterdam is one of the best preserved in all of Europe. When visiting this remarkable city, you tend to forget your troubles just for a moment. With this travel guide, you will be able to discover the real Amsterdam.

    Best Time to Visit Amsterdam

    To see the tulip(郁金香)flowers you can visit from mid-April to early May. For the New Year's celebration, there're a lot of parties going on then. However, if you want to enjoy a quieter and more relaxing Amsterdam, visit from October to March.

Getting Around Amsterdam

    You can rent a bike to go wherever you want to go. Public transportation is also convenient. You can get a chip card for about$9.

    What You Should Know Before Visiting Amsterdam

    Plan ahead since most of the attractions are usually busy and be careful with your wallets as the city is well-known for pickpockets. Also be cautious when you are buying something in the markets.

    The Best of Amsterdam

    Rijksmuseum

    This museum is one of the finest in the world. Make sure you arrive before 10 am to avoid big crowds.

    Vondelpark

    If you are looking forward to relaxing and enjoying some peace and quiet, make a trip to this top choice park in the city.

    Van Gogh Museum

    The Van Gogh Museum is very fascinating; you will definitely be moved as you see Vincent van Gogh's life and how he developed through art.

    A'DAM Tower

    If you want to get the inspiring views of Amsterdam, take the lift to the top of this tower. You can also climb aboard the giant four-person swing for some fun rides.

    Scientists in Britain have managed to teach bees to pull strings (线) to get to food and then pass on what they have learned to others in their colony (群体) — showing a high level of intelligence despite their tiny brains.

    Researchers at Queen Mary University of London said the experiments, often used to test the intelligence of apes (猿) and birds, showed for the first time that some insects are up to the task, and can also pass skills on through several generations.

    The findings add to the evidence suggesting the ability for "culture spread"— the ability to learn and pass on knowledge and skills — may not be exclusive to humans.

    In the research, published in the journal PLOS Biology on Tuesday, the scientists were able to train 23 out of a group of 40 bees to pull strings with their legs and feet.

    The strings were attached to discs — or artificial "flowers"— containing food at their center but placed under a transparent (透明的) screen. The bees, spotting the food beneath the screen, learned to pull the "flowers" out by pulling the string with their legs and feet to be able to get to it.

    From another group of bees given the chance to solve the task without any training, only two of 110 were successful.

    Another group of bees was then allowed to observe the trained bees pulling the strings, and 60 percent of them successfully learned the skill. Finally, trained bees were put in colonies, and the scientists found the technique spread successfully to a majority of the colony's worker bees.

    Lars Chittka, a Queen Mary University professor who guided the project, said the team is interested in figuring out the brain processes behind the bees' learning and teaching skills.

Coral reefs (珊瑚礁) as underwater walls can help reduce the effects of hurricanes on coastal communities. This seems unbelievable. It is reported that scientists have discovered that coral reefs are even more effective than man-made sea walls under the water. However, coral reefs are especially easy to be influenced by climate change. Overfishing and pollution have also proved very dangerous to them. Since 1950, half of the world's coral reefs have already been lost. To protect our communities and keep sea ecosystems alive, we need to protect coral reefs right away.

Let's take a closer look at how coral reefs protect us from floods, and how scientists are 1restoring (修复) reefs.

The roles that coral reefs play as underwater walls have long been recorded by scientists. During a Category 3 hurricane in 2015 in Australia, the coral reefs effectively protected the eastern shoreline from flooding. In contrast, the western coasts without coral reefs suffered serious damage. The researchers observed that the shape of coral reefs can break the approaching waves. More recently, researchers at the University of Miami have reached the same conclusion. They used a special lab simulator (模拟装置) to recreate ocean conditions during a Category 5 hurricane. They found that coral reefs could reduce the impact of waves by up to 95 percent!

Because of higher ocean acidity (酸性) and temperature, coral reefs are disappearing and dying out. At the same time, climate change puts weakened coral reefs under more stress. The University of Miami researchers are testing to plant new coral reefs while others are actively looking for effective methods to reduce the acidity of sea water. The governments have also paid more attention to these actions and provided enough money for reef restoration. With these efforts, we may address climate threats to coral reefs and they can carry on protecting our communities.