Recordings of angry bees are enough to send big, tough African elephants running away, a new study says. Beehives (蜂窝)—either recorded or real—may even prevent elephants from damaging farmer's crops.

    In 2002, scientist Lucy King and her team found that elephants avoid certain trees with bees living in them. Today, Lucy wants to see if African honeybees might discourage elephants from eating crops. But before she asked farmer to go to the trouble of setting up beehives on their farms, she needed to find out if the bees would scare elephants away.

    Lucy found a wild beehive inside a tree in northern Kenya and set up a recorder. Then she threw a stone into the beehive, which burst into life. Lucy and her assistant hid in their car until the angry bees had calmed down. Next，Lucy searched out elephant families in Samburu National Reserve in northern Kenya and put a speaker in a tree close to each family.

    From a distance, Lucy switched on the pre-recorded sound of angry bees while at the same time recording the elephants with a video camera. Half the elephant groups left the area within ten seconds. Out of a total of 17 groups, only one group ignored the sound of the angry bees. Lucy reported that all the young elephants immediately ran to their mothers to hide under them. When Lucy played the sound of a waterfall (瀑布) instead of the angry bees to many of the same elephant families, the animals were undisturbed. Even after four minutes, most of the groups stayed in one place.

    Lucy is now studying whether the elephants will continue to avoid the sound of angry bees after hearing it several times. She hasn't tested enough groups yet to know, but her initial (最初的) results were promising enough to begin trials with farmers. She has now begun placing speakers in the fields to see if elephants are frightened away.

    The US will have a new president this fall. Voters will decide between the Democratic candidate (候选人), Hillary Clinton, and Donald Trump of the Republicans.

    But the voting is not a must for each person in the US. So quite a lot of people choose not to vote, especially the young generation. According to Fox News, one-in-five young voters between the ages of 18 and 35 said clearly that they wouldn't vote for either of the two candidates. Just 12 percent of voters aged 35-54, and only nine percent of voters aged 55 and older said the same thing.

    This is not only because young people don't like Clinton or Trump, according to the Fortune magazine. The truth is that they are traditionally less likely to vote than their parents.

    “Young people are not at an age in their life when they think politics or government has anything to do with them,” said Rodd Freitag, a political science professor at the University of Wisconsin-Eau Claire, US. “But for the older age groups, they have a home, they pay taxes (税), they care about schools and the community.”

    Many believe that the civic (公民的) education of an American youth is another reason why they don't vote.

    Students usually just do community services like cleaning the neighborhoods. This means they haven't learned how to link real life problems to politics through voting, according to Christopher Beem, a politics professor at the Pennsylvania State University.

    He said the country needs to help young people learn how to take part in politics and get them to see that they can make a difference.

    Yosemite is a national park in California. It is very beautiful and big. The park includes more than 760,000 acres (英亩) in the California Mountains. Most of the park is wild (荒凉的).

    The part of Yosemite that everyone likes is Yosemite Valley. It is a small valley that is 7 miles long and less than 1 mile wide. It has tall rock walls and streams that flow down in waterfalls. More than two million visitors come to the valley each year.

    It's said that the number of visitors is more than the land can hold. The valley has 4,500 camping places. It has a hotel that can hold 4,000 families. This is still not enough to serve all of the visitors. The valley has grown so big that it has a lot of traffic.

    A worker says the park is trying to keep the beauty of the park and let everyone visit. Some areas have been rounded up (圈起来) to keep people away and planted with seeds to try to keep them beautiful.

    A former worker thinks Yosemite should get more money to take better care of the park. He would also like to teach people what the park service is trying to do.

    Some people are trying to save Yosemite Valley. A plan has been made to remove some buildings. There will be fewer cars allowed inside the park. More buses will help get people around.

    John D. Rockefeller once said, “The ability to deal with people is as purchasable a commodity (日用品) as sugar or coffee. And I will pay more for that ability than for any other under the sun. ”

    Wouldn't you suppose that every college in the land would conduct courses to develop the highest-priced ability under the sun? But if there was one, it would not escape my attention.

    The University of Chicago conducted a survey to determine what adults want to study. That survey cost $ 25,000 and took two years. The last part of the survey was made in Meriden, Connecticut. It had been chosen as a typical American town. Every adult in Meriden was interviewed and requested to answer 156 questions such as “What is your business or profession? Your education? How do you spend your spare time? What is your income? Your hobbies? Your ambitions? Your problems? What subjects are you most interested in studying?” and so on. That survey revealed that health is the prime interest of adults and that their second interest is people; how to understand and get along with people; how to make people like you; and how to win others to your way of thinking.

    So the committee conducting this survey decided to conduct such a course for adults in Meriden. They searched for a practical textbook on the subject and found none. Finally they approached one of the world's outstanding authorities on adult education and asked him if he knew of any book that met the needs of this group. “No,” he replied, “I know what those adults want. But the book they need has never been written.”

    I knew from experience that this statement was true, for I myself had been searching for years to discover a practical handbook on human relations. Since no such book existed, I have tried to write one for use in my own courses. And here it is. I hope you like it.

    Have you ever heard of the Coral Sea? It is home to an amazing variety of turtles, sharks, whales, dolphins, large fish, birds, corals, plants, and many other species. Many of these species are endangered elsewhere in the world, but still survive in the healthy environment of the Coral Sea.

    The Coral Sea is a large series of coral reefs located off the northeast coast of Australia. This area is three times larger than Australia's famous Great Barrier Reef, which the Coral Sea borders.

    The Coral Sea is one of the few coral reef environments that have remained largely undamaged by over-fishing, oil and gas exploration and pollution. However, statistics show that coral reefs around the world are disappearing five times faster than rainforests. It is very likely that in the near future the Coral Sea will face the same threats to its existence.

    The Australian government is currently looking at options for protecting the Coral Sea but has made no decisions. Environmentalists are pushing for laws to declare the Coral Sea area a marine protected area, which will mean a large “no-take zone” for fishermen, a no-exploration zone for gas and oil companies and a no-dump zone for pollution, possibly making the Coral Sea a marine park larger than any other in the world.

    We can write letters to Australian leaders, Australian environmental protection agencies, and Australian friends, to let them know that people worldwide support this protection of the Coral Sea. To lose this last great marine wilderness world would be a loss for the whole world.

Perhaps thousands of people have searched for a bronze chest full of gold and jewels hidden in the Rocky Mountains between Santa Fe and the Canadian border hidden by a millionaire adventurer. At least four people died in their search for the treasure.

But it's all over now. Fenn's Treasure has been found. The 89-year-old adventurer named Forrest Fenn, who created the treasure hunt, announced the news via his website. "I don't know the person who found it, but the poem in my book led him to the precise spot," Fenn wrote. "The treasure was confirmed by a photograph the lucky finder sent me."

Forrest Fenn, the man who started the hunt, lives in Santa Fe. He was a pilot in the Vietnam War and later accumulated his wealth as a dealer in art and antiques. Fenn was diagnosed(诊断) with cancer in 1988 and had planned to die peacefully in the woods with his treasure. But when his cancer became less serious, he changed his plan, eventually writing the poem that described his dream resting place, which is where he hid the treasure. The poem appeared in a memoir called The Thrill of the Chase. Fenn said that the chest wouldn't be found by accident; only a treasure hunter who correctly interpreted the clues(线索) would find it.

Several treasure hunters went missing while attempting to find the chest, including hunter Jeff Murphy and Mike Petersen, both of whom went missing in Yellowstone National Park in 2017. Fenn said that he had never been to the Yellowstone National Park, and that the treasure was not in a dangerous place. "It was in the thick forest of the Rocky Mountains and had not been moved from the spot where I hid it more than 10 years ago," Fenn wrote on his website. It is illegal to remove anything from a national park, which would cause trouble in legally claiming the treasure if it was found there.