Yellowstone National Park is one of the wildest places in the United States.But a few years ago,something very important was missing:wolves!To make things right ,the US government(政府)decided to bring wolves back to Yellowstone,and they hope that the coming of wolves would help to stop the...
Smith DW, Bangs EE (2009) Reintroduction of wolves to Yellowstone National Park: history, values and ecosystem restoration. Reintroduction of top order predators. Wiley-Blackwell, London, pp 92-125Smith DW, Bangs EE (2009) Reintroduction of wolves to Yellowstone National Park: history, values and...
Yellowstone is also famous for its spectacular Grand Canyon, which is 1,200 feet deep and highlighted by the powerful Upper Falls. The park is home to a lot of wildlife, including bears, deer, American bisons (野牛),and wolves. Visiting Yellowstone National Park is the experience of a life...
【题目】完形填空Yellowstone National Park in the USA is specialbecause of its wolves, elk(麋鹿) and natural beauty-evenwhen it's -20℃.I first went to Yellowstone National Park in the 1of 1992, while learning how to 2 wildlife with mygirlfriend Mary Lou. We had almost no 3 and found...
SAN FRANCISCO, Nov. 11 (Xinhua) -- The ecosystem at Yellowstone National Park is being improved with the return of large terrestrial carnivores such as wolves and cougars, according to a new study by Oregon State University (OSU) in western United States. ...
It is (7)during the day, but it's (8)atnight. You should bring a thick (9)B. Read and answer(阅读短文,回答问题)6%1. Where is Yellowstone National Park?2. Which river flows through the park?3. What's the biggest land animal in North America?4. Can people see wolves and bears ...
The disappearance of two animal groups from Yellowstone National Park changed the course of rivers and decreased plant and animal diversity (多样性). What two animals had such a big influence? Creatures that humans have long considered competitors and pests: wolves and beavers. In the 1800s, wol...
Bring back the Wolves Difficulty:★★★Scientists in the Yellowstone National Park(黄石公园) in Wyoming(怀俄明州),the U.S., recently started a special project to study how good wolves are at protecting other creatures in the park."Traditionally, wolves have a bad image in many countries as ...
This wolf, a female known as No.9, is one of the park s top breeders, and 70% of the wolves born in the park today have her genes. Wolves are now the marquee animal in Yellowstone. Many people said it was a lifetime experience seeing a wolf in the wild in Yellowstone. 在这些...
After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves. ...