With no natural predators, there is little need for winter camouflage.

因为没有天敌，冬季的伪就没有多大必要。

Their coloration provides critical camouflage from predators.

他们的颜色有着重要的伪，躲避天敌。

When released from the threat of predation, then, females tend to be gaudier.

一旦没有天敌的威胁，雌性就变得更花哨。

Worms and enemies and crustaceans are protected there.

蠕虫和它的天敌，还有甲壳类动物都在这里得到保护。

They eat anything, they have no natural predators.

无所不吃的这个物种没有天敌。

A creature that can change it's shape to avoid predators.

这种物可以改变自身的形状以躲避天敌。

Because of their tremendous size, polar bears have no natural predators apart from humans.

也正是由于巨大的体型，除人类以外，北极熊没有任何天敌。

That's the top predator that hunts other animals but has no predators of its own.

“apex predator”指捕食其他动物，但没有天敌的捕食者。

It means they have no natural enemies and no one can take them down.

意思是它们没有天敌，没谁它们。

They've got predators in the water and on land, well, in the sky. anyway.

它们在水中、陆地上，甚至天空中都有天敌。

Penguins have hardly any natural enemies in the Antarctic.

企鹅在南极几乎没有天敌。

The weasel refused, saying that he was by nature the enemy of all birds.

鼬鼠拒绝了，说他是任何鸟类的天敌。

Which would make them and their offspring an easy meal.

这会使树蛙及其后代轻易成为天敌的盘中餐。

Such flummery is costly to grow and likely to attract predators.

这种饰物会威胁存，可招致天敌。

Once they arrive, the tables are turned.

攻击者的天敌们一到，局面就扭转了。

Scientists warn the hippos do not have a natural predator in Colombia.

科学家警告称这些河马在哥伦比亚没有天敌。

His burrow gives him somewhere to hide from predators, like this stork.

这些洞穴使得螃蟹躲避天敌，比如鹳。

And he says the snakehead's natural predators, including smaller fish, instinctively adjusted to its presence.

他还表示，蛇头鱼的天敌，包括小鱼，本地适应了它的存在。

And to top it off, we exterminate their natural-born killers with pesticides.

雪上加霜的是我们还杀虫剂了它们的天敌。

I'd take it easy with that snail poison. It's hell on your agapanthus.

我将慢慢对付那些蜗牛毒药的。这是你的爱情花的天敌。