Jaguars, apex predators that can weigh about 250 pounds, are capable of killing cattle and horses. Attacks on humans are rare but can easily be fatal.

美洲虎这种食肉动物，处于食物链的顶端，体重一般250磅左右(约113公斤)，能够捕杀牛和马这样的大型动物，很少攻击人，但一旦遭到它的攻击，常常是致命的。

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A single lionfish can reduce recruitment of other fish on a reef by a staggering 85 percent, and these apex predators are threatening both commercial fishing and tourism.

一条狮子鱼就能令人难以置信地在一处暗礁减少85%其它鱼类的补充，而这些顶级食肉动物正威胁着商业性捕鱼和旅游业。

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"We must stop the shark-finning which is resulting in the death of thirty to seventy million sharks each year because that has so upset ocean ecology by the removal of these often apex, top-level predators."

VOA: special.2011.03.15

Given their status as apex predators, other animals in the park have had to recalibrate their behaviour accordingly, as have the rangers who take visitors on walking safaris.

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He also runs an extensive scientific program, headed by the wildlife biologist, Cristina Eisenberg, an expert in apex predators (she has spotted a few lone wolves on the property, a notable development since the species was effectively eradicated from the southern Rockies in the 1930s).

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