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. Gray wolves once were seen here and there in the Yellowstone ...
D. The introduction of wolves in Yellowstone National Park is a success. 答案1.A.词义猜测题.根据第三段中Yellowstone has benefited from the reintroduction of wolves in ways that we did not anticipate, especially the complexity of biological interactions(互动) in the park可知,黄...
The article offers an explanation on how Yellowstone National Park was and was not changed by wolves. In 1995 biologists at Yellowstone set radio collars on six wolves and observed them. As of March 2015, there are a total of 95 wolves in 11 packs, hunting elk, deer and bison. It notes...
Park rules say that visitors to Yellowstone should stay at least 22 meters away from all wildlife, and at least 90 meters away from bears and wolves. One ranger said that Yellowstone recently added many safety signs that say staying near the wildlife there is dangerous to humans and animals ...
解答32.C 细节理解题.根据文章第一段"Scientists studying populations of gray wolves in the USA's Yellowstone National Park have developed a way to predict how changes in the environment will affect the animals'number,body size and genetics,amongst other biological features."研究美国黄石公园灰狼种群的...
The tourists werepenalized$ 110 for touching park -wildlife. Park rules say that visitors to Yellowstone should stay at least 22 meters away from all wildlife, and at least 90 meters away from bears and wolves. One ranger said that Yellowstone recently added many safety signs that say staying...
(61 meters) into the air. Located in Yellowstone National Park, Grand Geyser is a great example of a fountain geyser. Unlike cone geysers, which tend to produce a fairly vertical, constant column of water, fountain geysers erupt in a much more chaotic fashion [source:National Park Service]....
photographic trip, as there will always be things outside of a photographer’s control. But Yellowstone is especially difficult in this respect. The park and its diverse wildlife inhabitants are iconic, think bison, wolves, and bears, and almost everyone has seen beautiful photos from Yellowstone...
America’s most special places will always be beautiful, but a warming climate forces us to accept that they can’t be frozen in time.
What is the animal sighting that tops many visitors’ wishlists in Yellowstone, Canada, or Alaska? You might think the answer is straightforward: grizzly bears. Wolves. Bison. The answer, however, ismoose! Standing taller (and heavier) than a horse, you quickly find yourself looking in awe ...