The loneliest chimp(黑猩猩)in the world just got the best surprise—a hug from a new friend．Ponso has been by himself for nearly three years，finding himself alone after his wife and children died on the island where they were abandoned by a medical testing company many years ago．

    For years a nearby villager named Germain has been Ponso's only company，visiting him so often to bring bananas and bread—the chimp's only source of food on the tiny island．It was clear how much Ponso missed companionship when he was recently visited by Chimpanzee Conservation Centre Director Estelle Raballand．The chimp immediately embraced Estelle Raballand in a huge hug and laughed as she reached out for him，with his smile from ear to ear．

    For those who know Ponso's backstory，his immediate ease and trust in humans might be surprising．Ponso was one of 20 chimps，all between the ages of 7 to 11 years old，relocated to an island off the Ivory Coast after being used for testing by the New York Blood Centre．After the tests were completed in 2005，the lab reportedly transferred the chimps to a string of islands，occasionally dropping off food and water because there was none in the chimps' new homes．

    Disease and hunger soon left only Ponso，his mate and their two children standing．But at the end of 2013 they died within days of each other and Ponso was now completely alone．

    A group called SOS PONSO is trying to raise money for the poor lonely chimp，already achieving its goal of $20,000 - all of which will be used for Ponso's care．

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    Navajo was the perfect choice for a secret language. It is very complex. One vowel (元音）can have up to ten different pronunciations, changing the meaning of any word. In the 1940s, Navajo was unwritten language. No one outside of the reservation could speak it or understand it.

    The Navajo Code team had to invent new words to describe military equipment. For example, they named ships after fish: lotso-whale (battleship), calo-shark (destroyer), beshloiron-fish (submarine). When a Code Talker received a message via radio, he heard a series of unrelated Navajo words. He would then translate the words into English and use the first letter of each English word to spell the message. The Navajo words tsah (needle), wol-la-chee (ant), ah-kh-di-glini (victor), and tsah-ah-dzoh (yucca) spelled NAVY.

    The Code Talker kept the code a secret. They memorized everything. There were no code books. As a result, no ordinary Navajo soldiers, if captured by the enemy, could understand the code. More than 3,600 Navajos served in World War II, but only 420 were Code Talkers with the US Marines. They coded and decoded battlefield messages better and faster than any machine. They could encode, transmit, and decode a three-line English message in 20 seconds. Machines of the time required 30 minutes to perform the same job.

    Even after the war the code remained top secret. When they were asked about their role, Code Talkers just said: “I was a radioman.” War movies and histories came out without mentioning them. The code was never used again and was finally declassified in 1968. Only then did the secret came out.

    Many people believe high heels(E)make women look good. It seems that the organisers of the Cannes Film Festival reportedly stopped women in low-heeled shoes from walking the red carpet. But all this charm comes at a cost, wearing heels over 10em high can damage your feel.

    A study by Hanseo University in South Korea suggests that continuous wearing makes women run the risk of getting hurt, and makes them easy to lose their balance, A total of 40 women who wear high heels at least three times a week took part in the study, The strength of their feet was measured regularly, researchers found that two of the four main muscles became stronger after a period of between one and three years, This created an imbalance in their feet, Dr Yong Seok Jee from Hanseo University says that the habit of wearing heels can result in feet out of shape, back pain and unhealthy walking patterns He suggests that women limit the use of these kinds of shoes and exercise their foot muscles properly.

    High heels are considered by some people to be female, but in fact the fashion started with men's feet. These shoes were a form of riding footwear, and were seen on the feet of 17th century Persian soldiers, Elizabeth Semmelhack of the Bata Shoe Museum in Toronto says: “When the soldier stood up in his stirrups (马镫), the heel helped him keep balance so that he could shoot more effectively.

    Before becoming a main part of modern women's clothing, high heels were used by Louis XIV of France. These shoes were status (身份) symbols Lets face it-nothing shows off status like uncomfortable, expensive and impractical clothing. They say the wearer doesn't have to work in fields or walk very far.

    He was a founder of modem Chinese literature. He was regarded as "an old man always telling the truth". Living across two centuries, he experienced many periods of danger and suffering but never lost his beliefs. His name was Ba Jin.

    As the 101-year-old legendary（传奇的）writer passed away in Shanghai after a six-year battle with disease, millions of Chinese were deeply sad. People in Shanghai and Chengdu gathered around his old house and literature museum to mourn for the great man.

    "My school held a series of ceremonies to express our deep sorrow,'' said Zuo Shang, a 17-year-old girl in Shanghai, who appreciates much of Ba's works. "He is a great writer who wrote so many masterpieces, but what I admire about him the most is his courage to tell the truth, 'Telling the truth, being an honest man.' That's what I learned from him," explained Zuo.

    Ba Jin was born in 1904 in Chengdu, Sichuan Province. A son of a wealthy family, Ba helped the poor ever since he was a child. It is they who taught him a strong yet down-to earth way of living.

    Ba finished his first novel, "Destruction", in 1929 during his travels to France. His later masterpieces, "Family" "Spring" and "Autumn", mirrored the struggles, tragedies and loves of the young in a feudal society. The books encouraged Chinese people not to give in to fate and to be their own masters.

    "Ba Jin told the true story of his country and his people. His great love and service to them meant he was thinking about what he could do for them," said Bing Xin, a well-known writer and also his good friend.

    Like other famous writers in China, Ba suffered in the "cultural revolution" during 1966—1976. But several years later, Ba examined his hard experience in strict introspection（自我反省）instead of hatred. His book, "Random Thoughts"， in 1979 displayed his real thoughts with painful sincerity and won him his reputation for honesty.

    "It really hurts to recall my past mistakes, but 1 have to," said the respectable man. "Always tell the truth. Say what you think in the bottom of your heart. That's my life motto."

    Fashions have a lot of rules. Most of them, however, are just wrong. But there's one rule that goes beyond tradition and into the field of scientific study of the brain: Black clothes are slimming. It all comes down to how your visual system processes the light. The below holes in each square are the same in size, yet the white hole looks bigger than the black hole.

    In the 1500s, Galileo Galilei noticed that some of the planets looked larger when viewed with the naked eye than they did when viewed through a telescope, making the white light of Venus appear eight to ten times larger than Jupiter in the night sky. He knew something strange must be going on with his vision to cause this illusion, but he wasn't sure what it was. Luckily, scientists never stopped wondering, and in 2014, they figured it out.

    Our visual system operates via two main channels: "on" neurons (神经元) that are sensitive to light things and "off" neurons that are sensitive to dark things. When it came to the dark "off" neurons, the researchers found that they responded predictably to dark shapes on a light background the greater the contrast between the two, the more active these neurons were. But the light on" neurons behaved unpredictably. Even with the same amount of contrast, light objects on a dark background caused a greater response in these neurons.

    This phenomenon makes some sense, evolutionarily speaking. In the dark of night, you'd want to be able to take in every bit of light you can get, so a visual system that enlarges light objects on a dark background could be very useful. However, it's not that hard to see dark objects in the light of day. It has some effects in the colors of your clothes and in the appearance of the planets—the brighter appearance of Venus in the night sky makes it look bigger than the darker Jupiter.

    The Taj Mahal (泰姬陵) is a love story, a sad and beautiful one. If it didn't exist, we would easily imagine that the story of its construction was simply a fairy tale. Three hundred years ago, there lived an Indian emperor called Shah Jahan. His wife was a beautiful and bright woman whom he loved greatly. Her title was Mumtazl Mahan: its shortened form Taj Mahan means "pride of the palace". In the year 1630 this beloved wife of the emperor died. He was so brokenhearted that he thought of giving up his throne. He decided out of his love for his wife, to build her the most beautiful tomb that had ever been seen.

    He summoned the best artists and architects from India, Turkey, Persia and Arabia and finally, the design was complete. It took more than twenty thousand men working over a period of 18 years to build the Taj Mahan, one of the most beautiful buildings in the world. The building itself stands on a marble platform 29 meters square and 67 meters high. Towers rise from each of the four corners. The Taj itself soars another 61 meters into the air. It is an eight-sided building made of white marble. The emperor planned to build an identical tomb of black marble for himself on the other side of the river connected by a silver bridge. However his son put him into a prison in the palace before he could finish, and for the rest of his life, he could only gaze across river at the tomb of his beloved wife.