解析 [答案] B [答案] B [分析]文章第三段中的二三句是说 grizzly bears 跟其余熊的不同之处,有 long rounded claws, many muscles on their backs, small rounded ears and white- tipped (or “ grizzled,所”以) furB 正确。反馈 收藏
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Contrary to what many people think, polar bears only live in the Arctic in the areas that surround the North Pole, not in Antarctica which surrounds the South Pole. Because penguins and polar bears are often seen in pictures together, some believe they live in both places, but that could n...
Brown bear attacks are most common in late spring, where mothers become fiercely protective of their young cubs. Food shortages and curiosity can also lead to brown bear attacks. If you meet a grizzly, stand your ground and do not run. These bears can run at around 35 mph over rough and...
Bear hibernation is part of a bear's annual cycle of activity, when its metabolic systems change and activity pauses for a period of time varying with the habitat's climate. Grizzly bears hibernate for 5–7 months each year. But it isn't as clear-cut as curling up and going to sleep ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific American maintains a strict policy of editorial independence in reporting developments in...
In the warm summer months, grizzly bears will seek cool spots located near food sources. They will look for grasses, berries and newly born animals. Fall In the fall season, grizzly bears will vary their movements to find as many sources of food as possible. They are storing fat for the...
How climate change threatens grizzly bearsIn the American West, a chain reaction affects the fate of an iconic species.Mother Jones
Hunting is on the decline across the nation, and many hunters in Iowa are saying that that could be detrimental in terms of controlling the deer population. The Iowa Department of Natural Resources estimates that the state has a deer herd of 500,000, writes The Associated Press,which could ...
【推荐2】Directions:Read the following passage. Summarize the main idea and the main points of the passage in no more than 60 words. Use your own words as far as possible. The United States government list of endangered species includes alligators, tigers, grizzly bears, some kinds of whales...