It's true that many dads in the wild aren't interested in parenting, but there are some that work pretty hard to give their little ones a good start. Maybe one of these dads will make you remember your own dad!

    The male giant water bug doesn't seem to mind a heavy load on his back for his kids. The female puts about 100 to 150 eggs on the back of the male, and then she leaves. Once the female is gone, the male has to look after the eggs. It usually takes one to two weeks for the eggs to hatch. The father giant water bug jumps around to make sure the growing eggs get enough air and water. All this time he can't fly because of the weight of the eggs growing rapidly on his back.

    Now let's turn to the male stickleback fish. When the mother leaves after laying her eggs, the father tends his young. If the young fish go too far away, their father helps with their safe return by carrying them back in his mouth. The male stickleback looks after all his young — as many as 100 — until they can live on their own.

    A similar example can be found in emperor penguins living in cold areas. The male emperor penguin goes without food while looking after his egg until it hatches. For about 62 to 67 days, the egg stays on top of the father's feet, in very cold temperatures that drop down to -39° C. As a result, the father may lose nearly 50 percent of his body weight while waiting for his baby penguin to be born!

    The English language has a lot of words which can be used in many different ways and in many different expressions.

    One such example is the word matter. In fact, matter can mean just about anything. It could be one of the most useful words in the English language.

    Let's get to the heart of the matter —a matter of principle(原则).

    If someone says that you owe(欠) him $50, but you don't, a friend might say, “Well, you could pay him the $50. It's not that much money. Then you won't have to hear him say it anymore. But if you do not owe him the money, do not pay him the money. It's a matter of principle.

    There is another way to use the word matter. But be careful with your choice of words.

    If you ask someone, “What's the matter?”, it shows you are worried about the other person. But saying, “What's the matter with you?” has a completely different meaning. And it usually sounds rude (粗鲁的). In fact, when you say, “What's the matter with you?” you are suggesting that the person did something wrong or stupid.

    Another expression that could sound rude is to say, “It doesn't matter to me.” Here, it depends on the context, and how you say it.

    Let's say you tell someone that a friend just got a big raise at work. That person answers with, “It doesn't matter to me.” Here, it means he or she does not care. And it sounds rude.

    But saying, “Oh, you pick where we eat dinner. It doesn't matter to me.” does not sound rude. In this situation, “it doesn't matter” shows you are easy-going(随和的).

    No matter how you look at it and what you say, matter is a very useful word. And it's only a matter of time before you will become an expert on the use of matter.

    Will it matter if you don't take your breakfast? Recently a test was given in the United States. Those tested included people of different ages, from 12 to 83. During the experi­ment, these people were given all kinds of breakfasts, and sometimes they got no breakfast at all. Special tests were set up to see how well their bodies worked when they had eaten a certain kind of breakfast. The results show that if a person eats a proper breakfast, he or she will work with better effect than if he or she has no breakfast. This fact appears to be especially true if a person works with his brains. If a student eats fruit, eggs, bread and milk before going to school, he will learn more quickly and listen with more attention to class.

    Opposite to what many people believe, if you don't eat breakfast, you will not lose weight. This is because people become so hungry at noon that they eat too much for lunch, and end up gaining weight instead of losing. You will probably lose more weight if you reduce your other meals.

    Janus, the Roman god, has two faces looking in opposite directions. So does artificial intelligence (AI). On one side are the positive changes, enabling people to achieve more, far more quickly, by using technology to improve their existing skills. Look the other way, though, and there are plenty of potential pitfalls.

    Like Janus, technological change may also cause disruption(混乱), but AI is likely to have a bigger impact than anything since the appearance of computers, and its consequences could be far more disruptive.

    In the years ahead, AI will raise three big questions for bosses and governments. One is the effect on jobs. Although CEOs publicly praise the broad benefits AI will bring, their main interest lies in cutting costs. One European bank asked Infosys to find a way of reducing the staff in its operations department from 50,000 to 500. The McKinsey Global Institute estimates that by 2030 up to 375m people, or 14% of the global workforce, could have their jobs replaced by AI.

    A second important question is how to protect privacy as AI spreads. The internet has already made it possible to track people's digital behavior in minute detail. AI will offer even better tools for businesses to monitor consumers and employees, both online and in the physical world. Consumers are sometimes happy to go along with this if it results in personalised service or promotions. But AI is bound to bring invasion of privacy that is seen as unacceptable. For example, law-enforcement officials around the world will use AI to spot criminals, but may also monitor ordinary citizens.

    The third question is about the effect of AI on competition in business. A technology company that achieves a major breakthrough in artificial intelligence could race ahead of rivals, put others out of business and lessen competition. This is unlikely to happen in the near future, but if it did it would be of great concern.

    It is too early to tell whether the positive changes brought by AI will outweigh the risk. But it will put an end to traditional ways of doing things and start a new era for business and for the world at large.

A Rare Spotless Giraffe

A female giraffe was born at Brights Zoo in Tennessee recently—but unlike her mother she was born without any spots an unusual one.

Standing 14 to 19 feet tall, giraffes are the tallest land animals in the world. When mothers give birth, the young giraffes are already 6 feet tall, and other than in especially rare cases, they're born covered in brown spots. Brights Zoo in Limestone, Tennessee, announced that it welcomed the birth of a reticulated giraffe (网纹长颈鹿) without any spots on July 31st.

"Giraffe experts believe she is the only solid-colored reticulated giraffe living anywhere on the planet," the zoo said. The zoo's director, David Bright, said zoo staff had been reaching out to zoo professionals across the country inquiring about how unusual the giraffe could be. Zoo officials said the only record of a reticulated giraffe being born without spots was in Japan in the 1970s.

Mr. Bright said that the new giraffe might not have survived if she had been born in the wild. "Being solid-colored, she may not be able to hide quite well," said Bright. He also thought it was likely that the giraffe would be a "key target for illegal hunters" because she's so unusual.

Pictures of the young giraffe can be seen on the Brights Zoo Facebook page. In a picture, she, without her spots, stood next to her mother, a normal giraffe, in stark contrast. The zoo is asking the public to help name the newborn. People can choose one of four names available on the zoo's Facebook page. The names and their meanings are: Kipekee, meaning unique; Firyali, which means unusual or surprising; Shakiri, meaning she is most beautiful; Jamella, which means optimistic.

Bright said that the zoo looked at thousands of names and their meanings before settling on the four available. "Those four are the four the family really loves," Bright said. "So if she's named one of those four, we're very happy."

According to the Giraffe Conservation Foundation, there are only about 16, 000reticulated giraffes left in the wild — a more than 50% drop from approximately 36,000giraffes 35 years ago. There are about 117, 000giraffes across nine subspecies(亚种).Many of them are endangered or critically endangered.

A group of foreigners visited Weihai, a coastal city, to explore what the rising star in China's tourism market can offer.

Driven by social media and short video platforms, Weihai's tourism industry saw a huge growth, with the city of just 2.92 million residents welcoming over 59 million visits.

Their first stop is the Dongchu Island in Rongcheng, a county-level city in Weihai, where the scenery is characterized by the region's unique seaweed-roofed houses. "I've never seen a roof made of seaweed. I can't believe my eyes at the houses," said Nick Ive, a British editor.

The group then visited the Sanggou Bay Marine Ranch（海洋牧场）, a hot family-friendly tourist destination to experience marine farming. "Visiting Sanggou Bay Marine Ranch was a pleasant experience because I could see and experience firsthan d how the sea fishes are kept," said Desca Lydi Natalia, a journalist with Antara, Indonesia's national news agency. "This experience not only increased my understanding but also provided enjoyment, as I could directly eat clams（蛤蜊） freshly harvested from the sea. I even had the opportunity to feed the seagulls."

Sanggo u Bay Marine Ranch receives about 80,000 visitors every year since it was established in 2015. Visiting the marine ranch has become one of the must-dos in Weihai.

Desca said that her favorite experience was living in a homestay in Weihai. "While staying in a hotel is comfortable, a homestay offers a different experience, especially since the yard is large and full of flowers, making it feel like home. So I chose a homestay,"said the Indonesian journalist. The homestay Desca chose is just a stone's throw away from the beach. Desca said that her country is a maritime country and also has many homestays. "So when I stayed in the homestay, the atmosphere reminded me of Indonesia," she added.