【推荐3】A water-proof drone (无人机) is used by Australian scientists to collect the highly-treasured nasal mucus (鼻部黏液) of migrating whales which is rich in fresh DNA viruses and bacteria. It flies over the blowholes of humpback whales as they go on their annual journey along Australia’s east coast.

Vanessa Pirotta, a biologist at Macquarie University, says that nasal mucus indicates the health of the whale “It’s the juicy biological mixture you see as a whale surfaces from the water to take a breath,” she said. “You often see that mist and hear the sharp breaths as a whale breathes because after all, they are mammals like us and have two nostrils (鼻孔). As they take a breath a lot of lung bacteria come out from their lungs, which we can collect to provide a picture of whale health.”

Australian researchers have attached a petri dish (培养皿) that is used in scientific tests to a drone which flies through the whale’s nasal mist.

Vanessa Pirotta says, “As a whale surfaces to take a breath — you can actually see it on good weather days — the drone lowers, the petri dish is then opened and the drone is flown through the thickest part of the whale snot (鼻涕), collecting the sample in the petri dish. Now once this happens the lid is shut and the drone is flown back to the research ship and we collect the sample to later process it in the laboratory.”

The research could help to solve one of the mysteries of another wonderful creature of the deep-the Southern right whale. Its numbers have recovered on Australia’s west coast since hunting was illegalized but its population on the eastern seaboard remains stubbornly low.

In the past, studies into whale health had to rely on examining whales that were either killed or grounded on a beach. Now drones allow scientists to collect samples from free-swimming whales to gather information without harming them.

【推荐1】The Walkmeter Walking & Hiking GPS has characteristics that are excellent for fitness walkers who want to improve their speed and distance. It uses your phone's GPS to measure the distance of your walks and hikes. It includes audio and voice integration（集成）so you can not only be informed of your workout statistics, but you can also listen to replies your friends send about your workout posts from Facebook and Twitter while you walk. Upgrading is less than $10 per year, far less than with some other apps, such as Endomondo.

Argus packs a lot into one lifestyle app. It functions as an all-day pedometer app. Your daily step count updates from your phone and includes active time, distance, calories, steps. and an hourly graph, It can also measure your heart rate at any time. You can easily take your heart rate during exercise and at rest. Besides, you can use the app’s food diary and sleep timer. A wide range of fitness and diet plans are also provided on it.

Charity Miles gives your walking a purpose, because it turns your exercise into donations to a certain cause, which offers a fresh donating means. Open up this free app（iOS or Google Play）and choose a charity. Start a workout, choosing walking, running, or cycling. For each completed mile, you’ll have earned a donation for your chosen charity. The basic rate is 25 cents for walking and running miles and 10 cents for cycling miles, subject to a periodic cap(最高限额). When you finish your walking, you must post to Facebook or Twitter to earn money for your charity.

【推荐2】A population of the world's most aggressive mosquito species was almost completely wiped out by an experiment on two islands in the southern Chinese province of Guangdong, according to a study published.

The experiment successfully reduced the female Asian Tiger Mosquito population — the main source of bites and disease spread — by up to 94%, reducing the number of reported human bites by 97%.

One of the Chinese study's researchers, Xi Zhiyong, a professor at Michigan State University, has been a longtime pioneer in this field of study. Running a mosquito factory in southern China, he previously attempted to use sterilized male mosquitoes to mate with unaltered females which developed normally. In the new study, published by the International Journal of Science, Xi and his colleagues attempted to cut mosquito numbers even further by limiting both males and females' ability to reproduce. The results were so successful that they nearly killed the entire female mosquito population on the two islands.

It isn't the first attempt by researchers to reduce mosquito populations across the world. In 2018, scientists from the Imperial College of London used gene-editing tools to make female mosquitoes sterile, while males developed normally and continued spreading the genetic mutation (突变).Experts said the Asian Tiger Mosquitoes are particularly hard to kill using traditional population control methods, such as pesticides (杀虫剂) and removing stagnant (不流动的) water where the insects lay their eggs.

Mosquitoes create grave threats to human health beyond just bites. The World Health Organization (WHO) has described the insects as "one of the deadliest animals in the world," due to their ability to rapidly spread deadly diseases such as dengue fever and malaria. There is currently no effective vaccine or treatment for most mosquito-spread diseases, leaving controlling the insects' populations one of the most effective control methods, according to the International Journal of Science. “A new tool like what's being described in this paper is very much needed” said Stephen Dobson, a professor of medical insectology at University of Kentucky.

【推荐1】This is Ella Stevens who, at just 13 years old, is fighting for a chance to drive for the most famous team in Formula 1 (一级方程式赛车)—Ferrari.

This fall Stevens faces a series of challenges, on and off track at the Paul Ricard circuit in France, with the ultimate prize a place on the famous Ferrari Driver Academy as its first female racer. “It’s a very good opportunity for me,” Ella, already a British karting champion, tells CNN. “We have to do a few fitness tests in the first phase so that they can see our driving. ”

The Academy is, in fact, a breeding ground for future racing stars.   Its current crop includes Mick Schumacher, the son of legendary Ferrari driver Michael, Enzo Fittipaldi, whose grandfather Emerson was a double F1 world champion, as well as Arthur Leclerc, the younger brother of Ferrari’s current F1 racer Charles.

On the face of it, there’s no place for a 13-year-old girl from a small village in England—who already has a mountain to climb as a female in a sport still dominated by males.   After all, a female has not raced in F1 for nearly 30 years, and just five women have taken part in a grand prix (大奖赛).

But Stevens is being supported by a popular figure in the F1 community, Rob Smedley. He worked as a Ferrari engineer for more than a decade and is now teaching Stevens through his own Electroheads Talent Academy.

Smedley describes Ferrari’s search for a potential female racer as a “huge step”. “Having a major player in the sport, with such a rich history as Ferrari, leading on this has to be applauded,” he tells CNN. “It’s absolutely amazing that they want to do this and they’re taking positive action to increase the gender diversity within the sport.”

【推荐3】When Peng Liyuan stepped off the plane in Moscow, the whole world wanted to know who dressed the elegant first lady. The reporter released the secret——Ma Ke.

Peng Liyuan has been wearing Ma Ke's designs for more than a decade, a fact that was only highlighted recently when she was on her first state visit, accompanying her husband President Xi Jinping. The elegant and attractive Peng, formerly a popular singer, has been compared with the US' first lady Michelle Obama and France's Carla Bruni－ Sarkozy, since stepping off the airplane in Moscow on March 22. Suddenly, everyone was curious to know more about the first lady's wardrobe.

Even so, Ma prefers a low-key approach. “If you eat a tasty egg why would you want to see the hen?” she says of all the media attention.

Ma's relationship with Peng began 10 years ago after a concert in Guangzhou when a reporter told Peng she knew the designer behind the label Exception de Mixmind. Peng asked for an introduction because she was a fan of Ma's designs and had been wearing them for years.

The two naturally became friends. Ma says: “The painting reflects the painter, and clothes reflect both the designer and the wearer. Someone desires fame and wealth, or love and sympathy; what you have in your heart is reflected in the design. Those who don't share my philosophy won't buy my clothes. Peng is a caring person, devoted to charity and environmental protection, which is exactly what I'm doing now.”

However, regardless of the brand, Peng's support of Chinese labels has surprised millions of Chinese who favor foreign fashion brands.

“Instead she presented a vision of Chinese fashion, desiring to bring Chinese designers to the world stage，” says a western designer.

The first lady's double-breasted coat and her black leather handbag aren't available at any of exception's shops, though Exception's physical stores do have seen a rising number of visitors.