A great white shark in a California aquarium attacked two soupfin sharks(翅鲨), causing their deaths. The attack was not a natural action for food, but a kind of response when the two sharks swam too close to the great white. The great white didn't attacked other fellows, but the officials had to move other soupfin sharks to another tank(贮水池)for their safety.

    These attacks had given rise to calls for the freedom of the 88-pound, 5-foot-3- inch shark. The aquarium housed the shark in a huge tank. However, according to experts, the tank was not big enough for the shark. Its nose was bloody from striking the glass of the aquarium. Great white sharks in the wild had a big amount of migration, sometimes traveling 50 miles a day. Because the shark was still young, there was possibility of his growing. As it grows, it can became more troubled in the limited space.

    Aquarium officials said that keeping the shark in the aquarium allowed them to study their behavior that they cannot study with free great white sharks. When they studied behavioral patterns, scientists believed that they can help great white sharks in the wild.

    Since the shark had been on display, the number of people who visited aquarium increased greatly. The one-year-old shark was the longest surviving great white living here. It had been at the Monterey Bay Aquarium for six months. Other great whites did not survive for longer than 16 days in the aquarium.

    Michael and I did not know when the waiter put the plates on our table. At the time we were sitting in a small restaurant, hidden from the busy Third Street, in New York City. Even the smell of fresh serving blintze did not interfered our conversation. In fact, we let the blintze soaked in the sour cream. We just enjoy the conversation too much that we forgot to eat. Our conversation was so delightful though we did not speak about important things. We laughed and spoke about the film which we have just watched.

    While our fun conversation continued, my eyes went across the room and stop on the corner. A couple of old folks sat in there. The woman wearing the flower dress with faded color, the same with the pillow where she laid her pallid handbag. The man's top head shined just like the boiled egg which he ate very slowly. The woman chewed her oatmeal(燕麦片) very slowly too, seemed with very much effort.

    But what made my mind thought about them was the silence around them. Michael and I paid our food and went on. When we passed the corner where the couple sat, my wallet fell. When I stopped to get it, I saw under the table, they were tenderly holding each other's hand. They were eating in silence while holding each other's hand! I was very touched to see the simple yet the very meaningful action reflecting the close relationship of the couple.

    Their silence was the pleasant and relaxing one, it was the expression of the tender love and it did not always need the words to express it. They might spend the hours holding each other's hand like this in the morning.

    When I and Michael went out of the restaurant, I thought, maybe it was nothing bad at all if some day we have something like that. Maybe, it will become the expression of the tender and complete love.

    What Theresa Loe is doing proves that a large farm isn't a prerequisite for a modern grow-your-own lifestyle. On a mere 1/10 of an acre in Los Angeles, Loe and her family grow, can (装罐) and preserve much of the food they consume.

    Loe is a master food preserver, gardener and canning expert. She also operates a website, where she shares her tips and recipes, with the goal of demonstrating that everyone has the ability to control what's on their plate.

    Loe initially went to school to become an engineer, but she quickly learned that her enthusiasm was mainly about growing and preparing her own food. “ got into cooking my own food and started growing my own herbs(香草)and foods for that fresh flavor,” she said. Engineer by day, Loe learned cooking at night school. She ultimately purchased a small piece of land with her husband and began growing their own foods.

    “I teach people how to live farm-fresh without a farm,” Loe said. Through her website Loe emphasizes that ''anybody can do this anywhere.” Got an apartment with a balcony (阳台)? Plant some herbs. A window? Perfect spot for growing. Start with herbs, she recommends, because “they're very forgiving.” Just a little of the herbs “can take your regular cooking to a whole new level,” she added. “I think it's a great place to start.” Then? Try growing something from a seed, she said, like a tomato or some tea.

    Canning is a natural extension of the planting she does. With every planted food, Loe noted, there's a moment when it's bursting with its absolute peak flavor. “I try and keep it in a time capsule in a canning jar,” Loe said. “Canning for me is about knowing what's in your food, knowing where it comes from.”

    In addition to being more in touch with the food she's eating, another joy comes from passing this knowledge and this desire for good food to her children: “Influencing them and telling them your opinion on not only being careful what we eat but understanding the bigger picture,” she said, “that if we don't take care of the earth, no one will.”

    It is quite natural for all of us to want to preserve and protect the foods we buy. We always think that the best way is by putting them in our refrigerators. However, there are certain foods which should never be placed in the fridge. The foods listed below may surprise you.

    Bananas in the fridge? Because they keep nutrients better outside the fridge, they should never be placed inside the refrigerator. Bananas are better kept on the counter until they ripen. The cold temperatures actually slow down the ripening process of the bananas, while the moisture and darkness of the fridge will only make them go bad.

    Potato should be placed in a cool, dry and dark space. By reason of the cold temperatures of the fridge, it can turn starch（淀粉）into sugar more rapidly. It is also recommended that potatoes be removed from plastic or paper bags they may have been placed in. Also, keep them unwashed, as well as in a well-ventilated cardboard box.

    Placing your onions inside your refrigerator will eventually end up turning them moldy and soft. Unpeeled（未剥皮的）onions should be kept out of plastic bags and fridge. One of the reasons for this is because unpeeled onions require and need air exposure for maximum life. If you have peeled an onion though, then you should keep it in the fridge, in a covered container.

    Believe it or not, placing garlic in your refrigerator will actually cause it to sprout（发芽）. The garlic will also got moldy and even rubbery. Moreover, inside your fridge, the look of the garlic will rarely change. This means you won't be able to tell if it's any good until you finally slice it open.

    Many people go to school for an education. They learn languages, history, geography, physics, chemistry and mathematics. Others go to school to learn a skill so that they can make a living. School education is very important and useful. Yet no one can learn everything from school. A teacher, no matter how much he knows, cannot teach his students everything they want to know. The teacher's job is to show his students how to learn. He teaches them how to read and how to think. So, much more is to be learned outside school by the students themselves.

    It is always more important to know how to study by oneself than to memorize some facts or a formula （公式）. It is usually quite easy to learn a certain fact in history or a formula in mathematics. But it is very difficult to use a formula in working out a maths problem. Great scientists, such as Einstein, Newton and Galileo didn't get everything from school. But they were all so successful. They invented so many things for mankind.

Above all, they knew how to use their brains.

    Scientists are attempting to extract (提取) cells from a 40,000-year-old horse in hope of using the sample to clone the extinct (灭绝的) species back into existence. The male baby horse was discovered in 2018 in permafrost (永冻土) in northeastern Siberia of Russia.

    A team of scientists from South Korea and Russia believes the young horse, called the Lenskaya or Lena horse, was about 20 days old when it died. The species of horse, now extinct, is between 30,000 and 40,000 years old. Thanks to the terrible coldness, the animal's tissue was preserved enough for the scientists to obtain samples.

    Semyon Grigoriev, head of the lab at the Mammoth (猛犸象) Museum of the North-Eastern Federal University in Yakutsk, said the horse was "well - preserved" and a "great find". There is no damage to the horse's body and even its hair is undamaged. The unfortunate animal, according to Gngo-riev, "could have drowned after falling into some kind of a natural trap."

    Hwang Woo-suk, a researcher from South Korea working on the project, said, "If researchers find a cell, they will do their best to clone the animal. If we get live cells from this ancient baby horse, it would be wonderful in terms of cloning."

    After that, they will make a cloned embryo (胚胎) and a female horse carry it as its mother. Hwang said modern-day horses are "very similar to the ancient one," so there would be no problem getting help from a modern-day female horse.

    The scientists are hoping the experiment on the baby horse will give them experience in progressing toward their ambitious goal-bringing back the extinct woolly mammoth.

    "If we manage to clone the horse-it will be the first step to cloning the mammoth." Hwang said.