These muscles give this carnivore's bite its speed.

这组肌肉保证的速度。

But sometimes the others would kick and bite.

过有时他们会踢打起来。

A pit bull breeder is savagely mauled to death.

一名斗牛犬饲养者被残忍地致死。

It would have been unlikely to risk breaking them on bony armor.

但是尝试用们来骨盔似乎太可能。

In his Mouse-Tower on the Rhine!

在莱茵河畔的鼠塔里被群鼠。

And this piranha-proof fish could be the key to a lighter load.

而这水虎鱼的巨骨舌鱼可能是减轻负重的关键。

You start biting those around you, hurting them, and causing them to avoid you.

你开始你周围的人，伤害他们，致使他们避开你。

Their life style of actually biting into other animals is pretty tough on their teeth.

们靠动物的生活方式对牙齿是严峻考验。

They'll growl and they'll snarl and they smack and they scratch and they snap.

们会吼叫，会咆哮，会拍打，会抓挠，会。

The front teeth are dagger-shaped with serrated edges designed to tear flesh.

门牙形如匕首边缘呈锯齿状，用以血肉。

That's because Massasauga are shy and prefer to hide than bite their enemies.

因为侏响尾蛇很害羞，面对敌人宁愿躲起来而是敌人。

Some dogs dig them, but mostly I think they enjoy tearing them up.

有些狗会刨箱子，但我认为，大多数狗只是喜欢箱子。

The shark is still very much alive and its bite could cause serious injury.

此时的鲨鱼还有很强的生命力，的仍能造成致命的伤害。

With its teeth and its upper jaw the snail cuts off bits of the young plants for food.

凭借这样的牙齿与上颚, 蜗牛能够植物幼苗作为食物。

It was no task for him to learn to fight with cut and slash and the quick wolf snap.

对他来说, 学习和狼式快攻的战术根本是小事一桩。

That, actually, when it bites an animal, it, in a sense, infects it with the bacteria in its mouth.

实就是当别的动物时，把口腔里的细菌感染给该动物。

The ridges are remarkably similar to those of another animal with a deadly bite, a Komodo dragon.

这些隆起跟另一致命的动物非常相似——科莫多龙。

Think of a caveman, and maybe you imagine someone tearing at the flesh of an animal they've just hunted.

一想到穴居人，也许你的脑海中就会浮现他们在他们刚刚猎杀的动物的肉的画面。

But some attack passers-by or chase cars down Santiago's main thoroughfare, the Alameda, occasionally ripping tyres with their teeth.

但是一些流浪犬攻击行人或者在圣地亚哥的主干道—林荫大道上追逐车辆，们有时会用牙齿轮胎。

Lions and tigers don't slash or rip at their prey.

狮子和老虎会砍杀或们的猎物。