3 . How to Survive a Lightning Strike?

According to the National Weather Service, almost two-thirds of lightning accidents occur as people enjoy leisure activities outdoors.     1    . Here’s how to stay safe when you’re enjoying summer outdoors.

Keep an eye on the sky

    2    . Thunderstorms usually occur in the afternoon or evening. Start your hike in the morning, and finish up by noon if the forecast indicates bad weather ahead. If the forecast calls for periodic storms throughout the day, make a smart choice and consider giving up the trip.     3    .

Before you head out for hiking, check maps to locate visitor centers, campground buildings, or rest areas along your route. Once you hear thunder, see lightning, or sense that a storm is approaching, don’t hesistate to use your plan. Hikers are strongly advised to watch continually for the nearest shelter.     4     .

Know the storm’s distance

Count the seconds between the flash and the following sound of thunder. Divide the number of seconds by five to calculate the number of miles between you and the storm. For example, if the number of seconds is 30, then the distance inbetween equals six miles, and find shelter immediately.     5    , just remember that you can hear thunder at a distance of 10 miles.

4 . New York’s Central Park has a statue dedicated to him, and there’s even been a movie about him: a sled dog named Balto. Now he is the focus of a DNA study, 90 years after he died, to see what made the dog so famously tough (坚韧).

In 1925, this Siberian husky was part of an expedition in Alaska called the serum run, the goal of which was to bring life-saving medicine to young people that were threatened by a deadly disease in the remote town of Nome, over 600 miles away. Balto led the long-distance stretch, and wound up getting most of the honor.

After Balto’s death in 1933, his remains were preserved and put on display at the Cleveland Museum of Natural History.

“Balto’s fame and the fact that he was taxidermized gave us this cool opportunity 100 years later to see what that population of sled dogs would have looked like genetically and to compare him to modern dogs,” said Katherine Moon, a postdoctoral researcher at the University of California.

Her team took skin samples from the dog’s belly and reconstructed its genome — the complete set of genes in an organism. They compared this genetic material with that of 680 contemporary dogs from 135 breeds.

Contrary to a legend that thought that Balto was half wolf — as suggested in an animated Universal Pictures film that came out in 1995 — this analysis found no evidence he had wolf blood. It turned out Balto shared ancestors with modern day Siberian Huskies and the sled dogs of Alaska and Greenland.

Moon’s team also compared Balto’s genes with the genomes of 240 other species of mammals.

This allowed researchers to determine which DNA fragments (片段) were common across all those species and have not therefore changed over the course of millions of years of evolution. This stability suggests that these fragments of DNA are associated with important functions in the animal, and that mutations (基因突变) there could be dangerous.

The bottom line from the research was that Balto had fewer potentially dangerous mutations than modern breeds of dogs did, suggesting he was healthier.

5 . Recycling is good for our planet, but it can be confusing. Can I recycle plastic bags? What about pizza cartons? Toothpaste tubes? Which bin should I use? There are so many questions, and more than half of Americans are unsure about how to recycle.     1     Here’s a handy four-step guide on how to recycle effectively:

Know what to put in the recycling bin. Keep it simple and focus on the most commonly recycled items, such as paper, glass, aluminum and plastic.     2     Don’t use the recycled symbol as a guide. “The number on the container is really for people to identify the type of resin (树脂). That’s not helpful for the common consumer,” said Cody Marshall, a strategist at nonprofit Recycling Partnership.

    3     It is really important to know what you cannot put in your bin. You can always check with your city or at BeRecycled.org. If you live in the US, just plug in your postcode to search. Recycling companies struggle with the same problem items: hoses (软管), cords, needles and clothing, according to Marshall, so don’t put those items in your bin.

Wash or clean items. Do a quick clean to make sure there is no food left in containers before you put them in the bin.     4     Save food for composting (堆肥) in your garden.

Don’t bag it. Unless you live in a place that requires it, like New York City, keep the recyclables lost in the bin. “A lot of the time, it’s not safe for our employees to tear those bags open, or it takes too much time,” said Keller. “    5    ”

6 . As cities balloon with growth, access to nature for people living in urban areas is becoming harder to find. If you’re lucky, there might be a pocket park near where you live, but it’s unusual to find places in a city that are relatively wild.

Past research has found health and wellness benefits of nature for humans, but a new study shows that wildness in urban areas is extremely important for human well-being.

The research team focused on a large urban park. They surveyed several hundred park-goers, asking them to submit a written summary online of a meaningful interaction they had with nature in the park. The researchers then examined these submissions, coding (编码) experiences into different categories. For example, one participant’s experience of “We sat and listened to the waves at the beach for a while” was assigned the categories “sitting at beach” and “listening to waves.”

Across the 320 submissions, a pattern of categories the researchers call a “nature language” began to emerge. After the coding of all submissions, half a dozen categories were noted most often as important to visitors. These include encountering wildlife, walking along the edge of water, and following an established trail.

Naming each nature experience creates a usable language, which helps people recognize and take part in the activities that are most satisfying and meaningful to them. For example, the experience of walking along the edge of water might be satisfying for a young professional on a weekend hike in the park. Back downtown during a workday, they can enjoy a more domestic form of this interaction by walking along a fountain on their lunch break.

“We’re trying to generate a language that helps bring the human-nature interactions back into our daily lives. And for that to happen, we also need to protect nature so that we can interact with it,” said Peter Kahn, a senior author of the study.

7 . Longing for the most amazing places on the planet? You can do no wrong with these lakes across the globe.

Five Flower Lake

Set in the striking karst landscape of the Jiuzhaigou Valley in Sichuan province, China, Five Flower Lake is extraordinarily clear, with visibility to a depth of 40 metres. Five Flower is one of a series of blue-, green-and sky-colored lakes blocked by rock falls, but it differs from the others as its waters change color, looking sometimes yellow, sometimes green, but usually diamond blue. In winter, Five Flower never freezes; in summer, it never dries up. Local wildlife living in the surrounding mountain forests include the rare giant panda and the golden snub-nose monkey.

Crater Lake

The deep-blue waters of Crater Lake in Oregon, US, fill the outlet of an ancient volcano that collapsed 7,700 years ago. Its strangest occupant is the “Old Man of the Lake”, a nine-metre-tall tree stump(树桩), which has stood upright in the water for more than a century. No rivers or streams enter the lake. Water loss in summer is compensated by winter snow and rain, the entire body of water being replaced every 250 years.

Lake Ohrid

Ancient Lake Ohrid has been around for about five million years and crosses the mountainous border between Macedonia and Albania. It has unique plants and wildlife, including the Ohrid “plashica”, a fish native to the lake, whose scales(鳞片) are used to make Ohrid pearls.

Lake Maggiore

Surrounded on three sides by the Lipontine Alps and touching the plain of Lombardy to the south, Lake Maggiore is Italy’s longest lake. Considered part of the country’s lake district, it is shared with Switzerland. Characterized by a Mediterranean-style climate, temperatures here are mild all year. This has given rise to some of northern Italy’s most wonderful gardens, which appear to float like flower-decked boats on the water.

8 . HOW PETS BOOST YOUR HEALTH

Your furry friend may be a wellness support you didn’t know you had! Here are four benefits you get from caring for a critter.

Lower stress levels

    1    , you know the kind of stress relief we’re talking about. In fact, a 2019 study found that it took just 10 minutes of petting a cat or dog to lower people’s levels of the stress hormone cortisol.” Touch is a very important feature of human-animal interaction,“ says Patricia Pendry, Ph.D., an associate professor of human development at Washington State University and the lead author of the stud

Higher self-esteem

This may be surprising but pet owners report having more self-esteem than people without pets    2     . “Providing a safe environment and responding to this animal’s needs — those are ways in which you’re giving loving support,” says Pendry. “You matter because you’re responsible for that animal’ well-being.”

    3    

Pendry says pets are often referred to as “social lubricants” because of the way they can help people make friends. Just think about how hard it is not to say hi when you see someone walking down the street with a super cute puppy.     4    . Pets have also been a saving grace for some people who have been isolated during the pandemic.

Maybe even a healthy heart!

Research shows that people who own pets have better cholesterol (胆固醇) levels, reduced risk of high blood pressure and lower rates of heart disease than those who don’t. However, it’s hard to say whether that’s due to the animals themselves, notes Pendry. But researchers aim to do studies to look into this,   she says, “because we want to really understand if there is a pet effect.” While we wait for results, give your cute ball of fluff a cuddle and a treat.    5    .

Welcome to Shangri-La (香格里拉) . Although located in Yunnan, it has many old    1    (village) with a unique countryside life. The     2    (beauty) city was formerly called Zhongdian that     3    (burn) by a big fire on January 11, 2014, but it has been rebuilt quickly. It’s nice    4    (see) the locals dancing every night on the main square. Visitors can involve themselves in     5    (dance). Guests can also explore its area nearby either on foot    6    by bike. A popular place is China’s first national park, Pudacuo,    7    is home to the lakes of Napa and Shudu. Maybe you can even meet with the golden Yunnan monkeys in one of    8    villages!    9    (clear), the winter is pretty cold in Shangri-La, but for those who are not afraid    10    the cold temperature, to see the snow here is very attractive!