“We are good mothers,” I said to my friend, as we sat on our comfortable beach chairs under our beach umbrella and watched our children playing in the waves.

    Out of nowhere, the children took off running. About fifty yards from us, a man—maybe in his fifties—was fishing. The children stood next to him and watched with their little mouths hanging open as he cast the fishing lines. He smiled at them. They ran back to us—all except my three-year-old daughter, Drew.

    My heart beat fast with horror. “Drew! Come here! Play with your friends!” I shouted, very aware that my speeches about not talking to strangers weren't working. It seemed that many parents heard of horrible stories about children being taken away by strangers. Responsible mothers should teach their children that the world is a dangerous place. So I felt relieved when Drew ran towards me and took hold of a shovel (铲子). Then she looked me in the eye: “I want to be with the person.”

    Again, she approached the middle-aged man, and started digging next to him.

    Several seconds later, she returned, waving something shiny.

    “Look, Mommy! A toy fish!”

    It was, indeed, a toy fish—yellow and rubber. This must have been what he was using to attract the fish. And he'd given it to Drew. The three other children were deeply impressed, and they didn't try to hide how jealous(妒忌的)they were—clearly, they all wanted the fish.

    “My friend gave me that fish!” Drew shouted loudly. The sand in front of the umbrella turned into a preschool cage match with a yellow rubber fish flying through the air. I felt like I might cry myself.

    Unexpectedly, there he was: the man, standing right next to us with three more rubber fish in hand. He handed them to each of the children. By their faces, you would have thought he was actually the really kind big brother.

    “Thank you,” I said, realizing that there is good and kindness in strangers.

    At least five wolves, including one female, have returned to Denmark for the first time in two centuries, a zoologist who has obtained DNA evidence said on Thursday.

    The wolves came from Germany to settle in western Denmark's agricultural region, the least densely populated in the Scandinavian country. Peter Sunde, a scientist at the University of Aarhus, told AFP the wolves must have walked more than 500km. "We think these are young wolves rejected by their families who are looking for new hunting grounds," the researcher added. Scientists have established a genetic profile from the faeces(f粪便) of five wolves - four males and one female - but there could be more. Sunde said researchers had suspected since 2012 that wolves had entered Denmark. "Now we have evidence [including] that there's one female," signalling the possibility of giving birth this spring, he said.

    Proof was also established through the wolves' fingerprints and video surveillance(监视,监督) showed their location, which scientists refuse to reveal out of fear that it will attract hunters."We're following that. The wolf is an animal we're not allowed to hunt so we must protect it," said Henrik Hagen Olesen, spokesperson at the Danish Environmental Protection Agency.Exterminated by hunters, wolves had been completely extinct in Denmark since the beginning of the nineteenth century.

    In other Nordic countries with a higher wolf population, culling(选择性宰杀) the species, protected by the Bern Convention, is under a fierce debate between inhabitants, farmers, hunters, the government, the European Union and wildlife activists.

    The purpose of keeping fit is to avoid illness ,resist the mental and physical fatigue（疲劳）that make us more likely to contract infections ,and above all to feel more pleasure in being alive. Research has shown the value of a balanced diet ,fresh air, sunshine ,enough rest and some forms of regular exercise for everyone .If everyone followed this plan ,the number of people visiting the doctor and going to hospital would be considerably reduced.

    Unfortunately, although most people acknowledge the importance of physical fitness, not enough of us put this into practice .We spend too much time watching others from the comfort of an armchair or a seat in the stand at a sports stadium.

    One reason why people who are physically fit to live longer is that they do not put the heart under excessive strain（过度劳累）and so they reduce the risk of heart and blood vessel（血管）diseases .They also avoid suffering the consequences of weakened muscles ,which are the cause of a great deal of back and abdominal（腹部的）trouble.

    About 640 muscles for about 45% of our body's weight, they must have the ability to store energy and be continually supplied with fuel by the blood .Sensible exercise, suited to each individual and preferably undertaken on the advice of a doctor, is the best insurance of meeting these requirements.

    Incredible Women You Didn't Learn About in History Class

    Here are the stories of women you may not know about, but definitely should

    Maria Sibylla Merian

    Born in Germany in 1647, Merian was fascinated by insects, and she began collecting, studying, and drawing them when she was as young as 13. She was one of the few naturalists of her time to actually study live insects. It was through her study of caterpillars(毛毛虫) that she discovered the truth about their life cycles. Her work provided major contributions to the field of entomology（昆虫学）。

    Murasaki Shikibu

    Murasaki Shikibu, a Japanese woman, was widely considered to be the world's first novelist. She was a noble woman living in Japan around the year 1000 AD. She wrote a two-part novel called The Tale of Genji, which tells a riches-to-rags story about the son of a Japanese emperor forced to live as a common man. The Tale of Genji is widely considered to be a masterpiece of Japanese literature.

    Ada Lovelace

    Ada was working to design early computing machines that she hoped would be able to quickly solve math problems. In addition to designing this early computer program, she also was first to suggest that these computers might be able to do more than, well, calculate. She imagined them doing everything, from producing images to composing music.

    Lucy Stone

    Born in 1818, Stone married a fellow activist and changed her name, but decided to change it back a year later. She held the belief that "a wife should no more take her husband's name than hers." She became the first American married woman to keep her maiden name for her entire life. Stone was also one of the founding members of the American Equal Rights Association and fought for the ending of slavery.

    Many people prefer eating out instead of cooking at home. A change appears to be taking place, though, and millennials are leading the way. According to one survey, more young people are starting to cook at home for three basic reasons: They can save money, eat healthy and waste less food.

    Popular TV chefs are also getting millennials excited about learning some basic cooking skills. Many millennials view cooking as a form of entertainment and self-expression. They proudly post pictures of their cooking creations on Facebook or Instagram, and invite friends over to share the cooking experience.

    Many millennials have also found ways to avoid wasting food. After roasting a chicken, they put the leftover bones in their freezer instead of the garbage can. Later, they use the bones to make chicken stock which is an important ingredient in many dishes.

    They also hate throwing out fruit that's too old. To avoid that situation, they bake ripe fruit like berries and bananas for 15 minutes at 175 degrees C. Then they freeze it overnight. After that, they place the fruit in plastic bags and store it their freezer for later use.

    Now any millennials only eat at restaurants that have excellent food-waste policies. These servants use every part of the vegetables they buy, including their stems and roots, in dishes. They also use beef, chicken and pork bones to make their own stock.

    Millennials also reduce food waste by only buying what they require. Before going to a market, they write down what they need and don't buy anything else. They say they won't purchase more food than they can consume.

    "An apple a day keeps the doctor away" is one of the most common sayings in the English languages. This is because apples were one of the first foods that medical professionals recognized as healthy­their benefits became obvious when  quite simply, doctors found that people who ate apples were sick less often than those who did not. Today we have a more specific understanding of why apples are so beneficial to overall health.

    Apples can help keep your levels of bad cholesterol (胆固醇) down. The pectin (果胶) in apples helps you to maintain cardiovascular health and reduce LDL cholesterol(which is the "bad" kind). Apples themselves do not add cholesterol to your diet and are full of water and fiber to help prevent the cholesterol in other foods you might digest. According to Health Diaries, people who eat two apples per day may lower their cholesterol by as much as 16 percent.

    Apples are naturally low in calories and high in water content. Eating an apple can satisfy your hunger and keep you from reaching for high-sugar, high-calories snacks. By eating apples, you will be more able to maintain a healthy weight because they fill you up, potentially stopping you from eating food that encourages a waistline increase.

    Apples contain respectable levels of boron (硼) which helps build healthy bones, and can also prevent diseases like arthritis. Apples are rich in vitamin C, which is known to help build immunity.

    Studies have shown that apples can decrease the risk of breast cancer, colon cancer, and liver cancer. One theory is that the apple skins are responsible for this, so be sure not to peel your apple before you eat them, as you could remove some of the health benefits.