Shark attacks in the screen are amazing. That’s because your actual chances of ever being attacked by a shark are merely one in 11.5 million. That’s the same as your chances of winning an Oscar, which makes shark attack survivor, Mike Coots both incredibly unlucky and lucky: When Mike was 18, he lost his leg to a shark bite.

“I was attacked by a tiger shark in late October 1997. It was near my home on the island of Kauai — an autumn morning with friends. The waves were really good, so nothing was stopping us.” But then a large shark came right up under Mike and sank his teeth into Mike’s lower leg. As he tried to free himself, the shark bit down harder, shaking its head back and forth and threw Mike around like a rag(破布) doll. Mike did what he could do: He struck the shark in the face, again and again until the shark let him go. As Mike swam back into shore, he realized his lower right leg was gone. Witnesses who saw the terrible scene were shocked. Mike’s friends rushed to his aid, and sent him to the hospital.

When Mike recovered, he didn’t weep for his experience and instead he did what many of us might consider unthinkable: he started riding the waves again. In fact, his first time back was near the site of his attack. Meanwhile, he was curious — why was he attacked? His curiosity led him to research sharks and Mike did learn something essential that would change his life: Humans are far more dangerous to sharks than the other way around.

He began working with the Hawaii state government to help pass a ban on shark products. “I partnered with other like-minded shark attack survivors and biologists, and we headed to Washington to call on officials to create a nationwide law to protect sharks.”

Long before "digital" and "native" were words that could reasonably fit into the same sentence, kids had adventures in the great outdoors-the sort of nature-filled adventures filmmaker Paul Ward experienced as a child growing up on a farm.

"Unfortunately, children today don't have the same exposure to nature," says the father of Estella, nine, and Sylvie, seven. "Instead, these digital natives are often glued to their screens."

Wanting to reconnect this young generation with the outside world-via a medium that they're familiar with-Ward teamed up with film producer Vicky Pope to create Wild Eyes, a website that uses technology to help children to get in touch with nature.

Ward and Pope spent two years developing Wild Eyes, which requires users to complete interesting tasks in nature, such as setting up camp or finding a certain kind of bird. Once a challenge is complete, the player uploads a photo to the website to earn online encouragement and "likes" from other players.

"It's all about interacting with kids on their own terms," says Ward.

Ward, who spent almost two years working as a producer for the Discovery Channel in Los Angeles, says the response so far has been positive. "We've had more than 15, 000 site visitors to date, which is really encouraging."

Both Ward and Pope are working hard to ensure all the tasks are affordable and adaptable for both the home and classroom. They believe there's also a future benefit to turning square eyes into wild eyes.

"As David Attenborough says, people will only protect what they care about and they'll only care about what they've experienced," he says. "Given so much of our lives are lived online, if we care about looking after our natural world, it's important we provide attractive digital experiences that engage young kids with nature."

Plants are helpful to human: they provide us with wood and other products, they give us shade, and they help to prevent drought and floods.

Sadly, in many parts of the world man has not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had.

Several thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became hard and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.

Even if a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to cook his food with, and he can earn money by making charcoal(木炭) or selling wood to the townsman. He is usually too lazy or too careless to plant and look after trees. So unless the government has a good system of control, or can educate the people, the forests will slowly disappear.

This does not only mean that the villagers? sons and grandsons have fewer trees. The results are even more serious. For where there are trees their roots break the soil up—allowing the rain to sink in and also hold the soil, thus preventing it being washed away easily, but where there are no trees, the soil becomes hard and poor. The rain falls on hard ground and flows away on the surface, causing floods and carrying away with it the rich topsoil, in which crops grow so well. When all the topsoil is gone, nothing remains but a worthless desert.