Particularly if those skills might come in handy for our four-footed little friends.

尤其是碰到我们可爱的四足朋友迟早有用的技能。

Game with four paws, Professor Aronnax, Ned Land replied. All these pigeons are only appetizers, snacks.

还短一只四足的猎物，阿龙生。尼德·兰回答，所有这些鸽子、山鸠都不过是零食和小吃。

Quadrapeds like Pachyrhinosaurus walk on all fours.

像肿鼻角龙这样的四足恐龙用全部四肢行走。

The squat four legged Gastonia's heavy load slows him down to four to five miles per hour.

四足矮壮的加顿龙沉重的负荷使它的速度只有每小时4到5英里。

This was the missing link between bony fishes and tetrapods, including human beings, so this was a fantastic expectation.

这是硬骨鱼和包括人类在内的四足动物之间缺失的一环，所以对我们来说这种期待很奇妙。

It contained all kinds of four-footed animals, as well as reptiles and birds.

里面有地上各样四足的走兽和昆虫，并天上的飞鸟。

So, we've kind of moved on from a bird launch, and now we think that they were launching quadrupedally.

我们研究了鸟类起飞的姿势，现在我们龙是用四足行走的方式起飞的。

It's the famous robot quadruped, or four-legged dog-like machine from Boston Dynamics.

这是波士顿动力公司著名的四足机器人，也就是四条腿的狗一样的机器。

Whatcheeria was an early tetrapod, as the first land animals with backbones were known.

瓦切螈是一种早期的四足动物，作第一批有脊椎的陆地动物而人所知。

It was a magnificent sea otter from the genus Enhydra, the only exclusively marine quadruped.

倒下来的是一只很好看的水獭，一只水兽，它可能是住在海中的唯一的四足兽了。

And of course, sheep walk on four legs.

当然， 羊是用四足行走的。

I looked into it and saw four-footed animals of the earth, wild beasts, reptiles and birds.

我定睛观看，见内中有地上四足的牲畜和野兽、昆虫并天上的飞鸟。

Let's think of some of the advantages of being a biped or facultative quadruped.

让我们想想作双足动物或兼性四足动物的一些优势。

Unlike many early tetrapods, bones of Whatcheeria have been discovered from different points in the animal's life.

与许多早期四足动物不同的是，人们发现了瓦切螈不同生命阶段的骨骼。

For it would appear that climate has some direct action on the hair of our domestic quadrupeds.

因气候似乎对我们家养四足动物的毛发有一些直接影响。

I’m using “cow” to mean “four-legged farm animal that moos”.

我用“牛” 来表示“会哞叫的四足农场动物” 。

Pachyrhinosaurus though was a more compact quadrupedal kind of animal, a more sturdy build than what we see in Albertosaurus.

肿鼻角龙是一种更结实的四足动物，比阿尔伯特龙身体更加粗壮。

These were creatures like Edaphosaurus, one of the earliest known tetrapod herbivores.

这些是像Edaphosaurus这样的生物， 它是已知最早的四足草食动物之一。

And a new way of breathing wasn’t the only thing tetrapods would need.

一种新的呼吸方式并不是 四足动物唯一需要的。

Your few four-legged ancestors, the tetrapods, struggled in tropical river plains.

你的少数四足祖， 四足动物，在热带河流平原上挣扎。