It's a popular belief that a fish's memory lasts for only seven seconds. It may seem sad to think that they don't remember what they've eaten or where they've been, and they don't recognize you or any of their friends — every moment in their life would be like seeing the world for the first time.

    But don't be so quick to feel sorry for them. A new study has found that fish have a much better memory than we used to think. In fact, certain species of fish can even remember events from as long as 12 days ago.

    In the study, researchers from MacEwan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank to get food. They then waited for 12 days before putting them back in the tank again.

    Researchers used computer software to monitor the fish's movements. They found that after such a long break the fish still went to the same place where they first got food. This suggested that they could remember their past experiences.

    In fact, scientists had been thinking for a long time that African cichlids might have a good memory. An earlier study showed that they behaved aggressively（挑衅地） in front of certain fish, perhaps because they remembered their past “fights”. But until the latest findings, there was no clear evidence.

    Just as a good memory can make our lives easier, it also plays an important part when a fish is trying to survive in the wild.

    “If fish are able to remember that a certain area contains safe food, they will be able to go back to that area without putting their lives at risks,” lead researcher Trevor Hamilton told Live Science.

    For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence.

    I will absolutely be the first person to romanticize libraries. I come from a home with thirty-two bookcases, a count that does not include the several dozen boxes of books in the attic labeled "work" and "extra." All these books are courtesy of my parents, both of whom were English majors in their day and in whose footsteps I never hesitated to follow. My childhood dream was of a house with a claw-foot bathtub, stained glass, and (most importantly) an enormous library made of built-in shelves, a sliding ladder, and window seats in every window. As a high school girl, I began working at the county library near my house, following up on two summers of volunteering with their summer reading program. I was all starry eyes and romantic visions of alphabetizing the classics and discovering gems among the new arrivals. What I found instead was that the life of a library was nothing like my daydreams, but far more important than I could have imagined.

    There is no library that is only a library anymore. Modern libraries can't afford and don't try to be only a receptacle for free books. They offer classes, book groups, Internet access, resume and tax help, tutoring, and multimedia resources for anyone who might wander in. Librarians are equipped to help with research and give recommendations. Most libraries have access to interlibrary loans, making the acquisition of nearly any piece of material merely a matter of time. What makes libraries so unique and important, however, is none of the diversity of resources and opportunities for community that they most certainly provide.

    ____________________________________. Every building one enters today comes with some expectation of spending money. Restaurants require paying for service. Shops require the intention of purchasing something. Houses require rent. Anyone who has lived near the poverty line, whether or not they have actually been homeless, has felt the threatening pressure toward expenditure that permeates the public spaces of modern Western culture. Even a free restroom is becoming difficult to find, especially as growing cities experience ever-increasing space restrictions.

    In a library, no one is asked to pay anything simply to sit. For those with few resources besides time, this is a godsend. Libraries are unofficial playgrounds for low-income families on rainy days, homeless shelters in cold months, reprieves from broken homes for grade-school-age children. They are the last bastions of quiet and calm where nothing is asked of one but to exist. Many arguments have been made about how the library is an outdated institution offering outdated services—that in the twenty-first-century how-to books on building sheds and daily newspaper copies are obsolete and the funding used for libraries ought to be reallocated to other programs. I can only assume that those who make such arguments are people who have always been comfortable with the expenditures it takes to move through the world. For those people, libraries can be about books. But not everyone has the luxury of seeing past the space.

    Libraries, as they exist in the twenty-first century, are the only remaining public domain. In a library, anyone of any walk of life can come and go as they choose, and so long as they remain respectful of the space they can remain as long as they wish. Libraries welcome everyone, offering a place to be and easily accessible resources to the most vulnerable populations, whether in downtown Chicago or small-town Oklahoma. My childhood romantic vision of the library is still close to my heart, but the very real work that public libraries do today is so much more critical than a leather-bound edition of Homer or a graphic novel fresh off the press. Those are the things the library gives me, but libraries are for everyone.

    There are many weird sports that are present from around the world. From each region of the world, along with the very popular common sports, there are also those really popular but very weird kinds of sports.

    The Ultimate Test between Man and Horse:

    This indeed a very strange kind of sport that tests your stamina. You will learn how to be agiler while competing against a horse. This game originated in Welsh town of Llanwrtyd Wells. This sport really has to do with strength. You will require great agility and strength in order to take part in this. Marathon human contestants are put to test against those mounted on horses. This is how the marathon testing takes place.

    Love Locked Race

    This is a sports event that was first introduced in Finland. This is all about a male competitor racing with a female in a certain way. There would be many obstructions and blocks on the way which would definitely bring you challenges. The person to win would have to finish the race without losing his female partner in the course of overcoming the obstacles even for once. This race takes place really fast and the obstacles are set that way.

    Toe sport

    This is yet another weird sport that welcomes you to use your toes. This is quite the same kind of sport that you used to play as a child which involved toe wrestling. This has now been turned into a major sport that even has a World Toe Wrestling Competition. It first originated in a pub of Derbyshire.

    The locals took this sport with great enjoyment and then made this so popular that it soon had its own championship. The individuals who participate have only got to use their feet in locks but then this is tougher than it may sound.

    The Mud Pit Belly Flop

    This is a kind of game where even the spectators get splashed in mud but in fact that is quite the fun. The very annual Summer Redneck Games in East Dublin brings about this game and brings about some of the greatest hubcap discus throws with it. This is also a great sport to show the strength and dexterity of your feet.

    All over the world, children in hospital are being treated with a new kind of medicine：Laughter. Lucy is 23 and works for Theodora Children's Trust. She is one of many clown (小丑) doctors who bring a smile to the faces of sick children.

    “I'm a Theodora clown doctor. I call myself Dr Looloo. I spend two days a week in children's hospitals, making funny faces, telling jokes, and doing magic tricks. As I walk into the wards(病房) I blow bubbles, shake hands with the kids, and make up nonsense songs for those children well enough to sing. I take special balloons to make 'balloon animals' and tell funny stories about them.

    I'm naturally a very cheerful person. I've always been a clown. In fact my father's a clown and I started working with him when I was eight years old. I knew it was just the job for me and I became a clown doctor because I think it's a great way to cheer up sick, frightened children in hospital.

    Being a clown in hospital is very tiring both physically and emotionally. We have to learn not to show our feelings, otherwise we'd be useless. Clown doctors are sensitive but this is not a side most people see. To the children we're happy all the time. I'm still learning to allow myself to feel sad occasionally. There working with a very sick little girl from Bosnia who speaks no English, so our only common language is laughter.

    At weekends I participate in events to raise money for Theodora Children's Trust. It's a charity, so we are paid with the money people give. Being a clown doctor makes the worries of everyday life seem small. All in all I feel honoured to do this job.”

    Twenty-one years ago, my husband gave me Sam, an eight-week-old schnauzer（雪纳瑞犬）, to help ease the loss of our daughter. Sam and I developed a very special bond over the next years.

    At one point, my husband and I decided to move to a new home in New Jersey. Our neighbor, whose cat had recently had kittens, asked if we would like one. We were a little apprehensive about Sam's jealousy and how he would handle his turf（地盘）being invaded, but we decided to risk it.

    We picked a little, gray, playful ball of Fur. She raced around chasing imaginary mice and squirrels and jumped from table to chair in the blink of an eye, so we named her Lightning.

    At first, Sam and Lightning were very cautious with each other and kept their distance. But slowly, Lightning started following Sam — up the stairs, down the stairs, into the kitchen. Later, when they slept, it was always together; when they ate, it was always next to each other. When I took either one out, the other was always waiting by the door when we returned. That was the way it was for years.

    Then, without any warning, Sam was diagnosed as having a weak heart. I had no other choice but to have him put down. The pain was nothing compared with what I experienced when I had to walk into our house alone. This time, there was no Sam for Lightning to greet and no way to explain why she would never see her friend again.

In the following days, Lightning seemed heart-broken. I could see the disappointment in her eyes whenever anyone opened the front door, or the hope whenever she heard a dog bark.

    One day as I walked into our living room, I happened to see Lightning was lying next to the sculptured replica（复制品）of Sam that we had bought a few years ago, one arm wrapped around the statue's neck, contentedly sleeping with her best friend.

    Amsterdam is one of the most popular travel destinations in the world, famous for its beautiful canals, top art museum and cycling culture. It is the capital and most populous (人口稠密) city in the Netherlands and often referred to as the "Venice of the North" due to its convenient system of bridges and canals. Here are some of the key points to remember as you plan your trip to Amsterdam.

    Must-See Attractions

    Most visitors begin their Amsterdam adventure in the Old Centre, which is full of traditional architecture, shopping centers and coffee shops. Don't miss the Dam Square and the areas around Spui and Nieuwmarkt. You'll also want to check out Amsterdam's Museum Quarter in the South District, which is great for shopping at the Albert Cuyp Market and having a picnic in the Vondelpark.

    Transportation

    Travelers should be aware that Amsterdam Airport Schiphol is one of the busiest airports in the world. You can catch a train from Schiphol to Amsterdam Central Station, which has many connecting routes. Cycling is very popular here, and it's easy to find cheap bike rentals around town.

    Recommended Restaurants

    Amsterdam is a top destination for foodies, so it is difficult to narrow down your dining choices. Here are a couple of our favorites.

    Money Saving Tips

    • Unless you really want to see the tulips (郁金香) blooming, avoid booking between mid-March and mid-May. This is when hotel and flight prices rise sharply.

    • Look for accommodations in Amsterdam's South District, where rates are generally cheaper than in the city center.

    • Buy train tickets at the machine instead of the counter to save a bit of money.

    • Check out our homepage to view price comparisons for flights, hotels, and rental cars before you book.