The sea lamprey is an ancient jawless fish.

七鳃鳗一种没有古老类。

It grabs it with its jaws.

它抓住甲虫。

Nanotyrannus did not have the jaw muscles or tooth design for penetrating bone.

矮暴龙肌和牙齿设计不能咬穿骨头。

Snakes have famously expandable jaws to engulf large prey.

众所周知，蛇有可膨胀来吞食大型猎物。

Unlike human beings, the great white's jaws aren't fused to the skull.

和人类不同，大白鲨片并没有和脑壳相连。

The meat was so tough that his jaws hurt from chewing it.

那块肉坚韧以致他由于嚼它而受伤。

But, for its size, a jaguar has the strongest jaws of any cat.

但相比于身体型，美洲豹有着猫科动物中最有力咬合力。

While fish with jaws first appeared in the Silurian, they proliferated in the Devonian.

虽然有最早出现在 志留纪，但它们在泥盆纪大量繁殖。

So they dissected infected ants and zoomed in on their jaw muscles with electron microscopes.

因，他们解剖了受感染蚂蚁，并用电子显微镜放大了它们肌。

But unlike the suction-feeding sperm whales of our times, Livyatan had short, powerful jaws.

但不同于我们时代吸食型抹香鲸，利维坦鲸拥有短而强有力部。

The researchers say the acanthothoracid was one of the earliest jawed vertebrates with teeth ever to live.

研究人员表示，acanthothoracid有史以来最早有牙齿脊椎动物之一。

This is because it has to balance out nearly half a ton of head and jaws.

这因为它需要与半吨重头相平衡。

These giants are the real " jaws" of the animal kingdom.

这些巨兽动物界真正“”。

His enormous jaws bit off the girl's head with a single bite, immediately killing her.

他那巨大部一口咬掉了女孩头颅，瞬间夺去了她生命。

While orthodontists go through the same training as dentists, they will also need to complete a post-graduate orthodontics course.

虽然牙齿矫正师要接受与牙医相同培训，但他们还需要完成研究所齿矫正学程。

And Morganucodon still had this old-style jaw joint.

Morganucodon 仍然有这个老式关节。

There were a number of short-faced kangaroo species living in Pleistocene Australia, with jaws adapted for grinding up tough leaves.

更新世澳大利亚生活着许多短脸袋鼠，它们适合磨碎坚硬树叶。

And while dire wolves didn't have the jaw strength of their cousins, the borophagines, they could still crack open bones.

虽然恐狼没有它们表亲食骨狼那样部力量，但它们仍然可以咬开骨头。

Somewhere around China, a fish developed jaws, and its descendants drove jawless fishes, sea scorpions and branching plankton to extinction.

在中国某个地方，一条长出了，它后代使无、海蝎子和分支浮游生物灭绝。

But remember that a froghopper can accelerate at 550 g's, and the mandibles of the snap-jaw ants pull over 100,000 g's, that's insane.

但请记住，一只沫蝉可以在 550 个 G 加速度下加速，而陷阱蚁下可以拉动超过 100，000 个 G，这太疯狂了。