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.

    Elephants are able to know the difference between a man and a woman, and can tell an adult (成年人) from a child—all from the sound of a human voice. This is according to a study in which researchers played voice recordings to wild African elephants.

    The animals showed more fear when they heard the voices of adult Masai men. Usually Masai people hunt elephants, and this suggests that animals have grown to listen for and avoid them.

    Prof. Karen McComb and Dr Graeme Shannon from the University of Sussex led the study. They explained that in former research they had used similar experiments to show that elephants could tell—from the sound of a lion—whether the animal was a female (雌性) or a more dangerous male (雄性).

    Prof. McComb wanted to find out if the animals used their very sharp sense of hearing to recognize danger from humans.

    The scientists recorded Masai men, women and children saying, in their own language, “Look, look over there, a group of elephants are coming.” They also recorded Kamba men saying this phrase.

    Masai people often come across elephants, which can result in violent (暴力的) hunting. Kamba people, however, mainly feed on agriculture, which does not generally bring them into violent touch with the animals.

    When the team played recordings of these different voices through a hidden speaker, they found that elephant family groups showed more fear in response to the voice of a Masai man, than to a Kamba man's voice. And the adult male Masai voices caused far more violent response than the voices of women or boys.

    Over 500 dogs being delivered to a butcher house were saved by a Chinese animal protection organization.

    The incident then triggered a debate among Chinese netizens about the necessity of pouring so much money and efforts into saving dogs.

    On Friday, a truck loaded with over 500 dogs were stopped by volunteers from animal protection organization on Jingha Expressway Beijing section. Beijing Times reported these dogs were being delivered to slaughter houses in the city of Changchun, northeast Jilin Province and would be eventually served on dinner tables. After negotiations with the truck driver, pet service provider Leepet Holding Corp. and a philanthropic foundation, Shang shan Foundation purchased these dogs, each paying 50,000 yuan. Dogs were then delivered to the headquarter of China Small Animal Protection Association (CSAPA), being taken care of and waiting for adoption.

    After the "dog saving mission" was reported, Chinese net users debate over whether saving dogs is worth so much efforts and money while there are still many poor and needy people in China lacking assistance. Some net users argue the "dog saving mission" is placing overattention to animals while lots of needy people are still left unattended. A microblogger "Xiaowulaitajie" said on China's twitter like website, weibo.com, "Dogs are saved, adopted and they attracted media spotlight. We'd better spend such money and take such efforts in helping the needy people." Another microblogger, Liluping, said "We poured such huge sum of money into saving dogs. I would rather the money was spent on disaster relief."

    Some applaud volunteers' actions and show eagerness of offering their helping hands to those saved dogs.

    Still many disapprove those "saving dogs" critics, but they argue that such act nonetheless promotes social progress.

    A microblogger named "broken bridge" said, saving dogs does not run counter to taking care of people. Such enthusiasm in public affairs will help raise social awareness in helping the needy.

    I think people and animals are created equal. Attention should be paid to people as well as animals.

    A man going abroad to work leaves his young lady crying. "Don't worry, I will write to you every day," he said. For years he did write to her. But since he was happy with his job, he had no immediate plans of going home. One day, he received a wedding invitation. His girlfriend was scheduled to be married. To whom? To the mailman bringing regularly the letters of her boyfriend! Indeed, distance does make hearts struggle.

    While presents are important, love demands what is basic: presence of the beloved.

    Martha was busy with her job. She believed she had to work harder because she loved her father who had serious disease. She had to provide for his expensive medicine. Her brothers and sisters meanwhile stayed with their father most of the time. They bathed him, sang for him, spoon­fed him or simply kept him company.

    One day Martha was hurt. She overheard her father telling her mother, "All our children love me except Martha." "How can this be?" Martha thought. "Am I not the one killing myself in my work to earn money to buy for his medicine? My brothers and sisters do not even provide their share in the expenses as much as I do."

    One night, as Martha was as usual late in going home, she peeped for the first time in the room where her father was lying. She noticed that her father was still awake. She decided to come close at his bedside. Her father held her hands and said, "I miss you. I don't have much time. Stay with me." And she stayed with her father holding his hand the whole night.

    The next morning Martha said to everyone, "I have taken a leave of absence. I would like to be with my father. I will bathe him and sing for him from now on." Her father had a beautiful smile. He knew this time Martha loved him.

    As children, we need the assuring presence of our loved ones. Adult people need no less.

Coca-Cola is to test a paper bottle as part of a longer-term goal to get rid of plastic from its packaging entirely. The prototype(样本) is made by a Danish company from an extra-strong paper shell that still contains a thin plastic liner (衬垫). But the goal is to create a 100% recyclable, plastic free bot tle capable of preventing gas escaping from carbonated(碳酸) drinks. The barrier must also ensure no fibers get into the liquid. 

That may have a risk of changing the taste of the drink ——or potentially can't meet the requirements of health and safety checks. But industry giants (巨头)are backing the plan. Coca-Cola, for example, has set a goal of producing zero waste by 2030. Coca-Cola was ranked the world's number one plastic polluter by charity group Break Free From Plastic(摆脱塑料) last year, closely followed by other drink-producers Pepsi and Nestle. 

The Paper Bottle Company, or Paboco, is the Danish firm behind the devel-opment of the paper-based container. Part of the challenge has been to create a structure capable of standing the forces exerted by carbonated drinks —— such as cola and beer —— which are bottled under pressure. On top of that, the paper needs to be mouldable to create different bottle shapes and sizes for different brands and take ink for printing their labels. 

After more than seven years of lab work, the firm is now ready to host a trial in Hungary this summer of Coca-Cola's fruit drink Adez. Initially, this will in-volve 2, 000 bottles distributed via a local retail chain. 

But it is also working with others. Absolut, the vodka maker, is due to test 2, 000 paper bottles of its own in the UK and Sweden of its pre-mixed, carbonated raspberry drink. And beer company Carlsberg is also building prototypes of a paper beer bottle. 

Michael Michelsen, the firm's commercial manager, says the bottles are formed out of a single piece of paper-fiber-based material to give them strength. 

Damarie Thomas, a twelve-year-old Jamaican teen, was concentrating on practising his skills for the upcoming football contest when he felt a hard tackle(抢断球) from behind, which pushed him to the ground. His world changed overnight. Though his injuries did not result in paralysis(瘫痪), they were serious enough to affect his movement. It was the last time that he had played football.

Now Thomas is an adult and he uses a wheelchair to travel distances. Despite a number of difficulties, he perseveres in his attempts to walk. He proudly claims that from being able to move only two steps at a time, he can now do five steps unaided. Limited resources have influenced his treatment, but he is hopeful that he will be able to complete recovery soon. Having an experience like this would have broken many an adult, but not this young man. "It's not what happens but how you come back from it that counts," he said.

After his injury, Thomas did well in his primary school exams and gained a place at one of the top-rated high schools in Jamaica. However, at that time the school was not equipped to accommodate a physically disabled student and he had to accept a transfer to a high school near his home.

It is a blessing that Thomas has now signed up for an information technology course at Abilities Foundation, proudly claiming his improvement by learning coding(编码). The Abilities Foundation aims to equip the disabled with skills through training. The training centre encourages Thomas to chase his dream — he wants to become a successful software engineer, creating innovative technology accessible and beneficial to all, especially people with disabilities.