Why Do Dogs Watch--and React to--TV?

    Domestic dogs can perceive images on television similarly to the way we do, and they are intelligent enough to recognize onscreen images of animals as they would in real life-even animals they've never seen before-and to recognize TV dog sounds, like barking.

    A 2013 study published in the journal Animal Cognition showed that dogs could identify images of other dogs among pictures of humans and other animals, using their visual sense alone.

    However, there are some differences between ourselves and man's best friend-for one, dogs' eyes register images more quickly than do ours. So older television sets, which show fewer frames(帧数) per second than modern televisions, would appear to a dog to be flickering(忽隐忽现的) like a "1920s movie," said Nicholas Dodman, a veterinary behaviorist(动物行为学家) at Tufts University, in Massachusetts.

    Dogs also have dichromatic vision, which means they see a range of two primary colors, yellow and blue. Human vision is trichromatic, so we see the full range of colors, according to Binghamton University's Ask a Scientist web page.

DogTV, an HDTV cable channel designed for dogs, interests canines(犬) because HDTV has a much higher number of frames per second and is specially colored to accommodate dogs' dichromatic vision, said Dodman, who is the channel's chief scientist.

    DogTV has modes for relaxation, which shows images like dogs recreate themselves in a grassy field; stimulation, which depicts scenes like dogs surfing in southern California; and exposure which shows things like a dog reacting to a ringing doorbell and obeying commands to adapt to such situations at home.

    Life is full of funny moments, and not just for humans.

    Over the years, studies by various groups have suggested that monkeys, dogs and even rats love a good laugh. People, meanwhile, have been laughing since before they could talk.

    Jaak Panksepp, a professor at Bowling Green State University, US, said he would not be surprised if positive feelings could be produced in some animals. Dolphins, for example, have long attracted animal researchers because of the complex (复杂的) ways in which they communicate: a rich variety of sounds of different rhythms. A decade ago, researchers studying dolphins at the Kolmarden Wildlife Park in Sweden noticed a set of sounds the dolphins made during play-fighting. They concluded that the purpose of the sound was to suggest that the situation was pleasant and to prevent it from a real fight.

    Panksepp has even seen evidence of joy in crayfish (小龙虾). When given small amounts of drugs such as cocaine (可卡因) in a certain place, they appear to connect that location with pleasure. “Given the chance, they will always return to that place, perhaps in the hope of getting more,” he says. Panksepp wasn't sure it equals the same happiness that humans get from cocaine, but said it “could be in the same evolutionary category”.

    More studies are needed to really understand animals' laughter. Strangely enough, the answers may help with our own desires for cures for mental illnesses. Panksepp's experiments may soon lead to a new antidepressant (抗抑郁) drug that works by using the pathways in the brain behind positive feelings and joy. Perhaps pleasure and laughter in the animal world will help solve the depression in our own species one day.

    In the U.S., speaking more than one language fluently is not very common — except in Los Angeles, California. The city has one of the largest populations in the U.S. of young people between the ages of 18 and 34. More than half of them in Los Angeles are bilingual (会说两种语言的).

    Maria Elena Burgos, a mother of two American-born daughters, is cooking a Mexican breakfast. She says making Mexican food is just one of the many traditions in her home. Another is speaking Spanish to her children. “We want to keep Spanish somewhere in their learning too, not only at home.” Ms. Burgos thinks being bilingual will give them more opportunities in the competitive world. Knowing Spanish also means the children can talk with their relatives in Mexico.

     Ms. Burgos' daughters both want to know their family's culture. “We are doing this in order to go back to our roots because that's part of who we are,” they say.

    The U.S. Census Bureau (人口普查局) says more than half the adults in the Los Angeles area between 18 and 34 years old speak a language other than English at home. For the whole country, the number of bilingual adults is only 25 percent. The number of bilingual speakers has gone up since the 1990s.

    University of California Los Angeles professor Raul Hinojosa says that in the past, the children and grandchildren of immigrants (移民) did not continue to speak the parents' native language. But now the opposite is true.

    In the last ten years, more immigrant parents say they want their children to keep speaking their native language. Mr. Hinojosa calls their choice the “path of pride”. The decision to keep a native language is clear in Los Angeles now. And, as the number of minorities in the U.S. continues to grow, he thinks bilingualism will spread to the rest of the country.

    About 6 years ago, I was on a plane next to a woman. I was tired and wanted to take a nap. But before I could go into "ignore pattern", she tapped me on the shoulder to introduce herself.

    "Hi, my name is Helga!"

    We got to talking and eventually it came up that I had started an organization in high school called R.A.K.E.(Random Acts of Kindness, Etc.). As I described what we did, Helga got very serious and told me that she admired me for that. She told me a story about the last time she had flown. She was on the way to Arizona because she had gotten sudden news that her dad's health was on the decline. Later her father's physician called to inform her that her dad had rather suddenly passed away. For the 3-hour plane ride, she sat in silence around strangers.

    When she arrived at the airport in Arizona, she walked to the nearest wall, sat down, and cried. And here is the part I'll never forget about Helga's story. For 2 hours she sat and wept while thousands walked to and fro in the airport. Helga looked at me and said, "Houston, not a single person stopped and asked if I was okay that day." It was that day that I realized how much we need each other. It was that day I realized that kindness isn't normal.

    Kindness isn't normal. That has stuck with me all these years especially now. I work in schools nationwide speaking about sympathy, kindness, empathy (同理心) and love. I'm reminded all the time that, for many of us, kindness is not usually our default setting. We spend so much time worrying about our problems, our lives, our insecurities, getting to our flight so we walk by or ignore people in need of help.

    So, I've made it my mission to do my part in sharing stories with students, teachers, and parents about our need for character and sympathy. I'm always be on the lookout for the little opportunities that surround me every day to do something nice.

    Diet pills, diet Coke, diet Pepsi, no-fat diet, vegetable diet… We are surrounded by the word "diet" everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

    Diet products significantly weaken us psychologically. On one level, we are not allowing  our brains to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the scale (秤) instead. All we have to do is to swallow or recognize the word "diet" in food labels.

    On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without our awareness that we don't have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.

    The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients. Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemicals that go into diet products are potentially dangerous.

    Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological and physical harm that comes from using them.

San Francisco Fire Engine Tours

    San Francisco Winery Tour

    Running: February 1st through April 30th

    This delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer.(Included in tickets price)

    Departing from the Cannery: Tell time upon request.

    Duration(时长): 2 hours

    Price: $90

    Back to the Fifties Tour

    Running: August 16th through August 31st

    This tour transports you back in time to one of San Francisco's most fantastic periods, the 1950s! Enjoy fun history as we take you through San Francisco for a free taste of ice cream.

    Departing from the Cannery 5:00 pm and 7:00 pm

    Duration: 2 hours

    Price: $90

    Spooky Halloween Tour

    Running: October 10th through October 31st

    Join us for a ride through the historical Presidio district .Authentic fire gear （服装）is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco

    Departing from the Cannery: 6:30 pm and 8:30 pm

    Duration: 1 hour and 30 minutes

    Price: Available upon request

    Holiday Lights Tour

    Running: December 6th through December 23nd

    This tractive four takes you to some of San Francis's most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.

    Departing from the Cannery 7:00 pm and 9:00 pm

    Duration: 1 hour and 30 minutes

    Advance reservations required.