D.By drawing support from polar bears. 相关知识点: 试题来源: 解析 B 选项分析如下: - **A. 逃到极冰区域**:麝香牛生活在北极苔原,虽然可能与冰区接壤,但它们的天敌灰熊(主要分布于陆地区域)并不会频繁追至冰层。麝香牛的防御策略更倾向于直接对抗而非长期逃跑,此选项不合理。 - **B. 聚集体反击*...
Typically, researchers have tracked the bears to see how many polar bears are around, where they're living and where they're moving to better focus conservation efforts. But this approach isn't working well enough, or quickly enough. Warm Waters for Cool Bears tackles the problem from the ...
With the end of summer, grizzly bears enter a state called hyperphagia, in which they increase their food intake to thousands of calories per day. Parks Canada lists digging out squirrels and their nut caches as food sources. The bear's health for the year depends on the availability of foo...
In North America there are three types of bears: black bears, grizzly bears (also known as brown bears in coastal regions of Alaska and Canada) [1] and polar bears. Polar bears are considered the most dangerous to humans, with grizzlies being next in line, followed by black bears. The ...
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
In North America, grizzlies have a much more limited range than black bears do. In the Lower 48, they are in Washington, Montana, Idaho and Wyoming. Andthen in Alaska, too. They also coverlarge parts of western Canada. Black bears have more territory. They can be found in as many...
Looking for and seeing wildlife can be quite the memorable experience, but it can also put you and the animals in harm's way if you don't put safety, and distance, first.Canada is fortunate to have such majestic landscapes filled with bountiful wildlife. E...
Menu All Watchlist Sign In EN Checks and Balance from the Economist All episodes IMDbProAll topics Checks and Balance picks: How the culture wars came for grizzly bears Podcast Episode 2023 10m YOUR RATING RateAdd a plot 在IMDbPro 上查看制作信息...
Related article Wildlife crossings are a lifeline for Canada's grizzly bears “We found that around this area has a lot of coral, and this is a perfect place for the bamboo shark, because this shark is the reef species, but they stay in the bottom,” says the mar...
How climate change threatens grizzly bearsIn the American West, a chain reaction affects the fate of an iconic species.Mother Jones