据我们所知,路易斯安那州还没有发生过黑熊掠食攻击宠物或家畜的事件,」她说:「而我也不认为熊会跑出来攻击囚犯。
We've never had a predatory attack by a black bear in Louisiana, to our knowledge, on pets or livestock, " she said. "As for a bear coming out and rushing an inmate , I don't see that happening.
设想一只动物,它必须去觅食,但同时也不得不保护自己免受掠食者的攻击。
Think about an animal. It has to get food, but at the same time it has to protect itself from predators.
一般情况下,如果在水流过急或者遭到饥饿掠食者的攻击时,这种贫毛类蠕虫会丢掉它的头,但很快长出一个新的头部。
Generally, if a sudden rushof water or a hungry predator causes a naidid to lose its head, it willsimply grow another one.
机车是为了让驯鹿免受掠食者的攻击。
然而,研究者们发现,食人鱼群集的时候多数情况是防御那些如淡水豚、鳄鱼和大型鱼等掠食者的攻击,而不是进行食物猎取。
However, researchers found that piranha most likely group together as a defense against such predators as river dolphins, caimans and bigger fish, and not to engage in feeding-frenzies.
梭鱼是可怕的掠食者,但是它们有时聚集成群为了防御抵抗鲨鱼的攻击在更高一级的食物链。
The fish are formidable predators, but they sometimes gather in groups for protection against sharks higher up on the food chain.
大白鲨鱼图片画廊。不管其分布担心这些庞大的掠食者,大白鲨攻击是很少致命的。
Despite the widespread fear of these enormous predators, great white shark attacks are rarely fatal.
梭鱼是凶猛的掠食者,通常采用伏击的方式猎食,依赖意想不到的高速度向猎物发动攻击。
They are voracious predators and hunt using a classic example of lie-in-wait or ambush. They rely on surprise and short bursts of speed to overrun their prey, sacrificing maneuverability.
梭鱼是凶猛的掠食者,通常采用伏击的方式猎食,依赖意想不到的高速度向猎物发动攻击。
They are voracious predators and hunt using a classic example of lie-in-wait or ambush. They rely on surprise and short bursts of speed to overrun their prey, sacrificing maneuverability.
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