While every dog owner knows their dogs can read their moods perfectly, scientists have always been a little doubtful. Now thanks to some researchers at the University of Veterinary Medicine in Vienna, Austria, we finally have some convincing evidence.

    For this study, biologist Corson Miller and his team exposed eleven selected dogs to digital images of women that were either angry or happy. Half the dogs were rewarded for touching the screen when shown a happy face, while the other half given their treat for selecting those that appeared angry.

    Interestingly, the dogs were not provided with the entire face. Some dogs were shown only upper halves while the others observed lower halves. That's because the scientists believe humans show their eruptions on their entire face.

    After some training on how to recognize small differences like the wrinkles between the eyes or the changes in their shape that accompany the happy or angry expressions, the dogs were mostly able to identify the correct expression not only on a familiar face but on a strange face, the researchers concluded the dogs were smart enough to read human emotions.

    They also found those being trained to read angry expressions took a longer time to learn. They guess it may be because dogs find angry faces disgusting, causing them to back away quickly. However, once the smart dogs realized they were getting rewarded, the trepidation seemed to disappear. In fact, the dogs had such a good time playing the computer "game" that scientists had a hard time keeping them away from the touch screens after the study was completed.

    The researchers also noticed only dogs with a male owner had a harder time understanding the expressions correctly. Since the touched screen models were all females, this confirmed what has been observed in previous studies-dogs are more efficient at reading facial expressions of people that are the same gender as their owner.

    The man who walked into Dave Cutlip's tattoo parlor（纹身店）in Brooklyn Park. Maryland, in January was tough to miss. His face bore a gang（帮派）tattoo. The man sought Cutlip's help in covering up his violent past. He was determined to turn over a new leaf. "I could see the hurt in his eyes," Cutlip, 49, told The Washington Post.

    Cutlip couldn't help the man—the tattoo were too close to the eyes. But it got him thinking. Many young people get tattoos that hey come to regret. A few can mark them for the rest of their days. Then they're" always going to be a victim." said Cutlip." If I can help, that's my ultimate（最终的）goal."

    Inking over a tattoo costs hundreds of dollars, and getting one removed by laser（激光）is even pricier. So Cutlip decided he would help by hiding racist or gang-related tattoos for free. He put the word out via Facebook:" Sometimes people make bad choices and sometimes people change. We believe there is enough hate in this world, and we want to make a difference."

    One man, Casey Schaffer, showed up with the word "white" on one forearm and "power" on the other. He'd served a year in prison on drug charges, he told The Washington Post, and had joined a white group there because they" took care of me. I thought of it as paying them back." But employers would take one look at the tattoos and turn him down. So he had Cutlip obscure（使不分明）one of the words with a heat and roses and tattoo an eagle over the other.

    Cutlip has done nine such jobs, each of which took several hours. He told People that a client（顾客）let him know that he quickly found a job once his tattoo was obscured. Such victories inspired Cutlip to found the Random Acts of Tattoo project with three like-minded（志同道合的）tattoo studios from around the country, and now hundreds of clients are on a wait list. As he told National Public Radio." If we can just erase hate, then we're doing something."

    We've heard of robots and AI（Artificial Intelligence）taking human jobs, but I bet mayors（市长）don't really think their jobs can be threatened any time soon. They were wrong, and the AI running for the mayor of a Tokyo district was clear proof of that.

    AI can't legally nm for high-ranking public management positions yet, but one mayoral candidate from Tama City, Tokyo, intended to maximize the use of artificial intelligence in running city affairs. He was running his campaign （竞选运动） as "AI Mayor". Basically, he was suggesting replacing human public officials with AI and having them collect city data and create fair and balanced policies that will benefit everyone.

    "For the first time in the world, AI will run in an election," human candidate Michihito Matsuda announced on Twitter. "Artificial Intelligence will change Toma City. With the birth of an AI Mayor, we will conduct balanced politics."

    The AI Mayor was campaigning very much like its human competitors. Posters were shown all over Tama City and campaign trucks were blaring out（大声鸣响）promises of an AI utopia （乌托邦）and asking for support.

    Some people called Michihito Matsuda's campaign a stunt （噱头）, as a human would still be the one legally in charge. However, others said that they were excited about the future of AI running things in the background, adding that it had to be a better choice.

    He was once referred to as the Picasso of poetry. Beloved by Chileans of all classes, he is one of the most widely read and respected poets in history. And this year is the 100th birthday of Pablo Neruda (1904-1973).

    Born with the name Neftali Ricardo Reyes Basolto, he was a tall, shy and lonely boy. He loved to read and started to write poetry when he was ten. The American poet Walt Whitman, whose framed picture Neruda later kept on his table, became a major influence on his work.

    However, his father did not like the idea of having a poet for a son and tried to discourage him from writing. To cover up (掩饰) the publication of his first poem, he took the pen name Pablo Neruda.

    In 1924 Neruda gained fame with his most widely read work "Twenty Love Poems and a Song of Despair". Yet his rich experience as a diplomat and exile (流亡) made him go beyond the theme of love. His work also reflected the political struggle of the left and development of South America. He was awarded the Nobel Prize for Literature in 1971.

    Neruda loved the sea which he saw as creative, destructive and forever moving. He found inspiration in the power and freedom of the waves and the seabirds on the coast. "I need the sea because it teaches me," he wrote. "I move in the university of the waves." He loved how the sea forever renewed itself, a renewal echoed in his work.

    Japanese researchers made a botanical announcement on Monday that quickly circled the world. They had developed a banana with an eatable peel (皮)—the Mongee banana.

    The technique used by scientists at D&T Farm is called "freeze thaw awakening". The process involves starling banana trees out in an environment that's nearly minus-80 degrees Fahrenheit, then moving the trees with their still-ripening bananas to a climate of around 80 degrees - an environment banana trees typically grow in the entire time. The extreme temperature change puts the banana's growth into a superfast-speed mode. In this case, the fruit ripens before the skin can catch up. The result is soft and thin skin that hasn't fully developed.

    The banana has been produced only in small amount so far, so customers face a steep bill to save themselves the bother of peeling their banana: it is currently priced at 648 yen ($6) a piece. There's also the question of whether a banana peel is actually worth eating and whether regular banana peels had, rather suddenly, become too big a problem for people who slip on them to bear anymore.

    And what about shipping? For most of the fruit's history, the peel has provided protection, allowing it to travel long distances from where it's grown to nearly every country on Earth. A softer banana would be a step back from regular banana varieties that travel thousands of miles.

    But the banana in the news is arguably good, particularly for a fruit that rarely receives its share of attention. Bananas are the most  consumed fruit in Japan, and also in the U.S. So even if eatable-peel bananas don't ensure plentiful bananas, or even necessarily nutritious bananas, they still look great on Instagram, which probably ensures them a future in Japan's famous luxury (奢侈) fruit markets.

    Of the several films Hirokazu has made about childhood and children, this one is the most modest, but no less pleasing for its delicate style and small setting. I Wish was originally called Miracle, and the change is for the better. The two-word title makes you want to know who's wishing for what, while the single word sounds plain and self-praising. This wise and funny film works small miracles in describing such a moment when kids turn from the wishfulness of childhood into shaping the world for themselves.

    The sweetly reflective hero, a sixth-grader named Koichi, starts out by wishing for a volcano to erupt. Not just any volcano, but the one that towers above his town, smoking heavily and giving off ash. An eruption would lead to a withdrawing, which would lead, at least in his mind, to a reunion with his father and kid brother, who've been living in Hakata while Koichi lives with his mother and retired grandparents in Kagoshima. The volcano, knowing nothing of this, refuses to erupt, but Koichi hears of another approach to realizing the desired miracle.

    One of the pleasures of I Wish is watching how kids behave—how Koichi attacks his dinner, for example. Another pleasure is rediscovering how kids think. These kids can be logical and ever so tricky. But children's thought processes can also be fancy. A boy wishes he could play baseball like one of baseball stars, who eats curry for breakfast; so he, too, starts eating curry for breakfast, instead of practicing on the field. Another boy tries to wish his dead dog, Marble, back to life. And what does Koichi finally wish for? I wish you'd see this delightful film to find out.