Because if the predator doesn't know you are there, it is not going to try to eat you.
因为如果捕食者不知道你在那里，它就不会试图吃掉你。
In this situation, the predator and prey population may continue in this cyclical pattern for some time.
在这种情况下，捕食者和被捕食者可能会在一段时间内继续这种循环模式。
Low prey population levels then provide inadequate food for the predators, causing the predator population to decrease.
较少的猎物数量为捕食者提供了不足的食物，导致捕食者数量减少。
This unexpected display of color startles or confuses the predator and provides the would-be prey with an opportunity to escape.
这种意想不到的颜色表现会吓到捕食者或使其迷惑，并为潜在的猎物提供逃跑的机会。
When experimental populations are set up under simple laboratory conditions, the predator often exterminates its prey and then becomes extinct itself, having nothing left to eat.
当实验种群在简单的实验室条件下建立起来时，捕食者往往会消灭它的猎物，然后自己也走向灭绝，因为没有东西可以吃。
They do that to draw the predator away from their nest, away from their eggs or their young birds.
它们通过这样做来把捕食者引离它们的巢，离开它们的鸟蛋或幼鸟。
As predicted, the birds incubated in the light looked for food mainly with their right eye, while using the other to check out the predator.
正如预测的那样，在光线下孵化的小鸟主要用右眼寻找食物，而用另一只眼睛观察是否有捕食者。
The animal stayed still, hoping that the predator wouldn't see it.
这只动物呆在那儿一动不动，希望捕食者不要看到它。
On the other hand, the fact that it's so hard to find dead otters is consistent with the predator hypothesis.
而且，很少发现海獭尸体也恰恰说明了天敌捕食假说。
In general, the size of the prey (fishes) increases with the fork length of the predator(Saurda tumbil or S. undosquamis).
被捕食对象的大小，随着捕食对象（多齿蛇鲻或花斑蛇鲻）叉长的增加而增大。
Surface structure of the pollen grains was found to be one of the major factors affecting the feeding behavior of the predator.
花粉粒的外部形态结构，是影响该螨能否取食的重要因素之一。
The darkness make this very effective. If it does get bumped it emits a cloud of luminescent particles that confuses the predator.
这在黑暗中很有效，如遇撞击可发射大团发光粒子以混淆捕食者。
In this paper, we studied the existence and uniqueness of limit cycle or the predator-prey system (l), and obtained theorems 1, 2, 3.
本文研究捕食—食饵系统(1)极限环的存在唯一性，得到了文中的定理1、2、3。
This algorithm pays no attention to the predator and prey's respective headings (the direction in which they're traveling) or their speeds.
这个算法没考虑捕食者和猎物各自的航向（他们移动的方向）和速度。
That advice may seem perfectly sensible to parents bombarded by heartbreaking news stories about missing little girls and the predator next door.
对于那些耳濡目染太多悲惨新闻——比如女孩失踪，凶手就在隔壁之类——的家长而言，这种建议似乎是合情合理的。
This paper deals with such a class of predator-prey models that the predator, in addition to the prey considered, has other natural sources of food.
本文研究这样的一类捕食模型：捕食者不但有模型中被捕食者作为食物，而且还有其它固定的自然食物源。
I'm particularly keen to see leopards and have chosen to stay at Tinga Lodge, which is in an area with the highest recorded density of the predator in Africa.
我特别渴望看看豹，于是选择住进庭加酒店，这个酒店地处非洲食肉动物数量密度最大的一个地区。
He found that when the predator was bearing down on players, they often experienced the same changes to their skin as those seen in people having panic attacks.
他发现当捕食者冲向玩家时，他们的皮肤都会出现类似人们感到恐慌时会发生的那种变化。
This "burglar alarm," scientists speculate, is meant to attract the attention of an even bigger creature that might be able to eat the predator and free the jellyfish.
科学家推断，这种“防盗报警器”是为了引起更大生物的注意，有可能能够吃掉它的敌人，从而将它解救出来。
Partly funded by WCS, wildlife biologist Kashmira Kakati had been studying the gibbons of Jeypore-Dehing and became curious about the predator tracks she kept finding on the ground.
在WCS的部分资金支持下，野生动物学家卡什·米拉·卡卡蒂(Kashmira Kakati)一直在对Jeypore - Dehing雨林的长臂猿进行研究。由于自己持续观察的这一地区出现了捕猎者的踪迹，卡卡蒂开始感到忧虑。
The role of the Predator drone has changed dramatically over time.
捕食者无人机的作用随着时间的推移发生了巨大变化。
The technology of UAVs has already moved beyond the Predator, however.
然而，无人机的科技已经超越了“掠夺者”。
While they may seem ruthless or brutal, the Predator warrior's behavior is actually controlled by a code of ethics.
尽管他们（的行为）冷酷又残忍，（但是）铁血战士的行为事实上是有一定准则的。
The predator-prey model whose predator's density interference term's coefficient is related with prey is investigated.
研究了一类捕食-食饵模型，其中捕食者的密度干扰项的系数与食饵密度有关。
He said the Reaper flies faster and higher, carries more weapons and has better overall capabilities than the Predator.
他说“收割者”能飞得更快，更高，能够挂载更多的武器，总体性能要比“捕食者”强的多。
Better known for its work in nuclear physics, General Atomics stole a march on the big firms by producing the Predator drone.
虽然通用原子能公司在核物理方面名气更响一些，但该公司已经比那些宇航巨头抢先一步生产出了“捕食者”无人机。
While the Predator started as a USAF program, the U. S. Army selected a variant of the Predator called Sky Warrior for its own unmanned aircraft system (UAS) requirement.
虽然捕食者无人机作为美国空军一个项目启用，但美国陆军也选择了捕食者的改进型称为空中勇士，以满足陆军无人机系统(uas)的需求。
While the Predator started as a USAF program, the U. S. Army selected a variant of the Predator called Sky Warrior for its own unmanned aircraft system (UAS) requirement.
虽然捕食者无人机作为美国空军一个项目启用，但美国陆军也选择了捕食者的改进型称为空中勇士，以满足陆军无人机系统(uas)的需求。
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