作为最残忍的掠食者之一，虎鲸可能不符合文明动物的形象。
As one of the most brutal predators, killer whales may not fit the image of a cultured creature.
有时候，色彩的快速变换可以用来惊吓掠食者或威胁入侵者。
Sometimes a sudden shift in color can be used to startle potential predators or threaten intruders.
外来掠食者最初不受自身掠食者的限制，它们可能会迅速繁殖并击溃预定目标。
Initially unrestrained by predators of their own, foreign predators are likely to be able to multiply rapidly and overwhelm intended targets.
他发现，当掠食者的威胁逼近时，强侧化个体的进食速度是弱侧化个体的两倍。
He found that strongty-lateralised individuals were able to feed twice as fast as wealdy-lateralised ones when there was a threat of a predator looming above them.
她孵化出了具有强侧向或弱侧向的雏鸡，然后为这两组小鸡准备了隐藏在小鹅卵石中的食物，还制造出假的掠食者飞过头顶的威胁形状。
She hatched chicks with either strong or weak lateralisation, then presented the two groups with food hidden among small pebbles and the threatening shape of a fake predator flying overhead.
嗜食者是喜欢好吃的东西的人。
机车是为了让驯鹿免受掠食者的攻击。
提醒：掠食者包括棕熊、狼、猞猁和鼬。
Cons: Predators include brown bears, wolves, lynx and weasels.
“我以为嗜食者是吃很多东西的人，”利迪娅答道。
“I think a gourmand is someone who eats an excessive amount of food,” replied Lydia.
“我以为嗜食者是吃很多东西的人，”利迪娅答道。
"I think a gourmand is someone who eats an excessive amount of food," replied Lydia.
周四，美国在利比亚上空部署了两架掠食者无人驾驶机。
The US began deploying two Predator attack drones over the skies in Libya on Thursday.
当像鲨鱼这样的顶级掠食者从环境中消失时，生态系统就会陷入混乱。
When top predators like sharks disappear from their environments, ecosystems fall out of whack.
我变成了一个小心谨慎的食者和从一个终生荤食者变成了一个素食者。
I became a mindful eater and adopted a vegetarian diet after a lifetime as a meat-eater.
然而一项新的研究却显示，过于庞大的体型可能会对掠食者的猎杀造成不利影响。
A new study, however, reveals that excessive size can interfere with predators' hunting.
这三十年间充满着危险，从自然界的虐食者到油泄漏到捕鱼设备的纠缠物。
The intervening three decades are fraught with peril, from natural predators to oil spills to entanglement in fishing gear.
狼是农场主必须面对的众多掠食者之一，他们还有对付山狗、山狮和家狗。
Wolves are one of many predators ranchers face, including coyotes, mountain lions, and domestic dogs.
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.
然而如今的掠食者实际上要比过去要小一些，其原因似乎与猎物的速度有关。
Yet today's predators are smaller than those of the past, and the reason seems to have something to do with the speed of their prey.
这只巨塔般的掠食者，以及象目的恐象，是地球上曾经存在的最大的哺乳动物。
This towering plant eater, along with Deinotherium — a member of the order elephants belong to — were the largest mammals to ever walk the earth.
不久之后，美国的“掠食者”侦察机和地面搜查人员又被调往伊拉克执行任务。
Soon afterwards, America's robot Predators and human manhunters were dispatched on another assignment, to Iraq.
现在在难以获得贷款的情况下，具有多种资金来源的大企业集团被发现他们正成为掠食者。
Now, with credit harder to find, the big conglomerates with their diverse sources of cash are finding that they have become the predators.
他们开始繁殖卡克布、保护它们的蛋，并且设置陷阱以确保不会有掠食者碰到鸟。
They began incubating the kakapos, protecting and guarding their eggs, and setting traps to ensure that no predators could get to the birds.
通过数字升级，“掠食者”无人机将通过联网设备与其它机器人及系统进行通讯。
This digital upgrade also turns the drones into networked devices that can communicate with other robots and systems.
它的光芒能产生使海蜗牛看起来比实际大的假象，这种光芒使其呈现鲜艳的外表来吓退掠食者。
The light creates the illusion that the snail is bigger than it really is, giving it a glowing presence for warding off predators.
它们无论作为顶端掠食者还是过分捕捞的指示生物都在生态系统中扮演着重要的角色。
They can also have an important role in the ecosystem as top predators or as indicators of overfishing.
——君主蝴蝶身上的彩色标记，也借机炫耀着自己的毒性，其目的是让掠食者们却步。
The Monarch Butterfly's colorful markings also flaunt its poisonous nature; their purpose is attained when predators are deterred.
——君主蝴蝶身上的彩色标记，也借机炫耀着自己的毒性，其目的是让掠食者们却步。
The Monarch Butterfly's colorful markings also flaunt its poisonous nature; their purpose is attained when predators are deterred.
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