Have you ever had the strange feeling that you were being watched? You tum around and, sure enough, someone was looking right at you!

Parapsychologists(R y3)say that humans have a natural ability to sense when someone is looking at them. To research whether such a "six sense" really exists, Robert Baker, a psychologist(心理学家) at the University of Kentucky, did two experiments.

    In the first one, Baker sat behind unknowing people in public places and stared at the backs of their heads for 5 to 15 minutes. The subjects(受试者)were eating, drinking, reading, studying, watching TV, or working at a computer. Baker made sure that the people could not tell that he was sitting behind them during those periods. Later when he questioned the subjects, almost all them said they had no sense that someone was staring at them.

    For the second experiment, Baker told the subjects that they would be stared at from time to time from behind in a laboratory setting. The people had to write down when they felt they being stared at and when they weren't. Baker found the subjects were no better at telling when they were stared at and when they weren't.

    Baker concludes that people do not have the ability to sense when they are being stared at. If people doubt the outcome of his two experiments, said Baker," I suggest they repeat the experiments and see for themselves

Rare Monkeys of Tongren, Guizhou

In Tongren, Guizhou, there are two special kinds of monkeys: theGuizhou golden snub-nosed monkey and the Francois'langur. {#blank#}1{#/blank#}

The Guizhou golden snub-nosed monkey is very rare. There are only around 800 of them in the world, and they all live in the FanjingMountain National Nature Reserve(自然保护区). This kind of monkey has an upturned nose and yellow hair on its head. {#blank#}2{#/blank#}So, if you visit Fanjing Mountain during the breeding season, you might see mothers carrying their cute golden babies.

{#blank#}3{#/blank#}There are about 2,000 of them in the world, and one-third of them live in the MayangRiver National Nature Reserve. Baby Francois' langurs are also golden when they are born. But when they turn one year old, their backs become black, and they grow a black"mohawk"on their heads. {#blank#}4{#/blank#}At night, they hide in caves to sleep. The special rocks and landforms in theMayang River National Nature Reserve make it a perfect home for them.

{#blank#}5{#/blank#}They are precious and need our care and attention. Through pictures and videos, you can learn more about them and help protect them for future generations.

A. But interestingly, when they are born, they are completely golden!

B. They have long, strong fingers that help them move easily in the trees.

C. These monkeys are very important because they are in danger of disappearing.

D. If you visit these nature reserves, remember to look for these two amazing monkeys.

E. Tongren, located in the southeast of Guizhou province, China, is known for its diverse wildlife.

F. The Francois'langur, also known as the black snub-nosed monkey, is another special monkey in Tongren.

More tigers are moving from Russia into northeastern China. This is because the environment is better for them to live in.

As human activities become less and the number of the wild animals is rising, tigers come to China for food.

Also, there is a cross-border corridor (跨境走廊) between China and Russia. It helps the tigers travel around freely. Data (数据) from a research team show that between 2013 and 2016, nearly 80 percent of the tigers moved across the corridor.

Besides, China started a number of projects to protect the tigers. As we all know, tigers need large areas to move around, so it's important to build national parks. In 2021, the Northeast China Tiger and Leopard National Park was set up in Heilongjiang Province and Jilin Province. It covers around 14,100 square kilometers. The national park creates a shared home for the animals. As a result, the number of the tigers has grown.

One more reason is that experts from China and Russia work together to research on tiger protection. Many volunteers go to protect tigers around the forests every year. It's believed that there will be more tigers in the near future.

Singapore is considered to be one of the cleanest countries in the world and attracts a large number of tourists every year. The country's reputation (名声) for cleanliness and order is good because of strict expectations(预期) about public action. Now, we' ve put together a list of"dos and don'ts".If in doubt,check out thel aws in more detail //www.gov.sg .

When using the escalator(自动扶梯) in Singapore, you should stand on the left and walk on the right. This allows those who want to walk up to go around you easily. Singapore also provides separate(分流) cycling and walking paths, so you should make sure you walk on the right paths. This keeps everyone a bit safer and prevents overcrowding.

 Although Singapore has a large number of new technologies in daily life, many areas still see the cash (现金). So having cash in hand is necessary; for example, some smaller neighborhood shops may prefer customers to pay in cash.

 In Singapore, the first thing you need to do is to get some tap water(自来水). Tho water is carefully tested, so it's safe to drink straight from the tap. Bottled water is widely available but it's expensive, while tap water is more cost-effective.

 Of course, there are some things that you can't do. In Singapore, for example, the sale of chewing gum (口香糖) is not  allowed meaning you cannot even bring gum with you when you enter. To keep public transportation clean, Singapore also has strict rules on behavior while riding.

 Singapore officials(官方) and locals take their rules very seriously, which makes their country clean and enjoyable for  people from around the world.