【推荐1】A study has found that warmer waters off North America's West Coast caused many kinds of sea life to move farther north than ever before.

The study was a project of scientists from the University of California, Davis. The scientists examined waters off the coast of Northern California in the eastern Pacific Ocean. The researchers say they recognized a local of 67 species（ 物种）between 2014 and 2016, during what was described as a "marine heat wave". Marine heatwaves were explained in the study as "period of extreme sea surface temperatures lasting for days to months". The 2014-2016 heatwave is thought to be the largest ever recorded. The warn water later moved south toward California.

The warmer water were partly a product of El Niño conditions during the same period, researcher noted. El Niño develops when winds off the coast of South America weaken. This enabled warm water in the western Pacific to move eastward. El Niño often causes ocean temperatures in the area to rise between 2 to 4 degrees Celsius, the study found.

The researchers reported that 37 of the 67 species they studied had never before been observed so far north as California. These creatures are native to an area hundreds of kilometers to the south, mainly around Baja California in Mexico. A few were even found north of California, off the state of Oregon. The northward travel of so many different sea creatures was considered "unprecedented"（史无前例的）by the researchers. Among the species found in the study were a meat-eating sea slug that hunts other sea slugs, a sea snail "butterfly" and purple-lined jellyfish. Another unexpected visitor was the pelagic red crab, which researchers said had only been found in areas off the coast of Mexico.

Scientists involved in the study believe the findings can provide valuable information for knowing future sea life reactions to warming oceans.

【推荐3】Buster’s life had a big change after his handler Will’s presence because Will found he did extremely well in sniffing(嗅) tests. Will thought Buster had a special talent and decided to let him become a member of RAF police working dogs. Buster began working with Will in 2007, and the pair was sent to Afghanistan’s deadly Helmand province. There, Buster saved countless lives by sniffing out explosive devices (IEDs), as well as weapons. He joined his comrades (同志) repeatedly on foot patrols hunting Taliban terrorists and tracking down bombs. He also acted as a useful diplomatic tool, due to his friendly approach to local children. The RAF soon had a long train of children in tow, as Buster in his crowd and entertained them.

After his glittering service with the RAF, Buster retired in 2011, and died in 2015 at the age of 13 at the home of his handler, Will, in Lincolnshire where he had been enjoying retirement with his handler Will, his wife Tracy and their two will inherit (继承) their father’s career.

Over the course of his career, Buster is thought to have saved more than 1,000 lives. He also helped patrol British bases and searched vehicles at check points, and upon retirement was made the official RAF Police mascot (吉祥物). Buster’s brave exploits were even documented in Will’s book, which was published in January and soon became a best-selling one.

Buster completed five tours of duty in Afghanistan, Bosnia and Iraq and earned a row of campaign medals, and it was because of his great efforts in these austere environments full of wars and confrontations that he would be remembered. It was the saving of countless lives by searching out IEDs that saw the honor of official lifetime mascot of the RAF Police bestowed (授予) upon Buster. The RAF police are now planning to commemorate Buster as part of a special event to celebrate RAF Police Working Dogs.

【推荐3】Armenian musician Astrid Poghosyan, a 29-year-old violinist, takes great pride in the Chinese name she picked for herself, Ma Xingxing. Last summer, she were busy making preparations for a series of in-person and online music events and cultural exchange programs. Poghosyan said she always put all her energies into the projects which she took part in, whether they were offline or online events, as she believed that every little effort would help her realize her music-related dreams.

“I believe music knows no borders, and cultural exchanges through music are especially important during the COVID-19 pandemic (流行病),” she said. Having studied and worked in China for 13 years, Poghosyan has now become a real China hand, skilled at the country’s language and culture. Such a multicultural background has certainly helped her stand out in her present job. For Poghosyan, the life she now leads is a far cry from when she first came to China in 2009 to learn to play the violin at the Shanghai Conservatory of Music. At that time, Poghosyan could not speak a word of Chinese. “And my high-school-level English wasn’t of much help at that time,” she said. “So I decided to learn Chinese to solve the communication problem.”

She has a strong desire for Chinese movies, traditional festivals and history stories, all of which helped her through the difficult language-learning process. As she gradually buried herself in the Chinese language and culture, she also started to make Chinese friends and explore the energetic city life of Shanghai.

“Since I first came to Shanghai, I have always been impressed by the kindness of the people here,” she said. “Even when I couldn’t speak Chinese, in the first days, everyone I met gave me a big smile. Their smiles have made me feel the warmth of the city.”