Like most other ungulates, goats have horizontal rectangular pupils.

就像大多数其它的有蹄动物一样，山羊的眼珠呈水平方向的矩形。

The majority of the prey in those cases are ungulates: think zebras or deer.

热带地区的被捕食者大多都是有蹄动物，比如：斑马和鹿。

If it's not cattle, then they go after wild ungulates like springbok or oryx or kudu.

如果不是牛，它们就会去猎杀像跳羚、羚羊或捻角羚这样的野生有蹄类动物。

These insects carry sleeping sickness, which is as much a bane of ungulates as it is of people.

这些小昆虫带有昏睡病，对类和有蹄类动物同样致害。

They have a longer gestation period than typical  North American ungulates, averaging eight months.

它们的妊娠期比典型的北美有蹄类动物更长，平均为八个月。

Even at lower costs, too few new niches appeared to absorb the workless ungulates.

即便成本降低了，适合用马的新会仍然太少，无法消化失业的马。

And fossils show that marsupials and ungulates were abundant, as were crocodilians.

化石表明，有袋类动物和有蹄类动物数量众多，鳄鱼也是如此。

Back then, Berger and his wife would get into a moose outfit to be able to get close to the ungulates.

那时，博格和他的妻子会穿上驼鹿装，以接近这一有蹄类哺乳动物。

There were other ungulates that were around, like small horses, that perfectly fit in the prey for a large terror bird.

当时还有小马等一些有蹄类动物，而它们完全符合大型恐怖鸟的猎物标准。

If it's not cattle, then they go after wild ungulates like springbok or oryx or kudu.

如果不是牛，那么它们就会追捕跳羚、大羚羊或捻角羚等野生有蹄类动物。

That means they share a common ancestor with  the ancestor of all living odd-toed ungulates.

这意味着它们与所有现存奇趾有蹄类动物的祖先有共同的祖先。

So some researchers thought  they were ungulates, too.

所以一些研究员认为它们也是有蹄类动物。

Its humerus and femur were shorter, and its lower limb bones were longer, more like the legs of other ungulates.

它的肱骨和股骨较短， 下肢骨骼较长，更像其他有蹄类动物的腿。

Degrange: There were other ungulates that were around, like small horses, that perfectly fit in the prey for a large terror bird.

Degrange：周围还有其他有蹄类动物，比如小马，非常适合大型恐怖鸟的猎物。

From the anatomy of its feet, they could tell that it was a perissodactyl, or an " odd-toed ungulate, " that stood on three toes.

从它的脚的解剖结构来看，他们可以看出它是用三个脚趾站立的奇蹄类动物，或“奇蹄类动物”。

Like, almost all of these extinct South American species had hooves - a feature that's associated  with the living ungulates, like deer and horses.

就像， 几乎所有这些已灭绝的南美洲物种都有蹄子——这一特征与现存的有蹄类动物有关，比如鹿和马。

So  they compared the proteins from the two South American ungulates to those from a range of 76  other mammals from across the mammal family tree.

因此，他们将两种南美有蹄类动物的蛋白质与哺乳动物家族树中 76 种其他哺乳动物的蛋白质进行了比较。

Ideally, when ungulates migrate, they synchronize their movements to forage for vegetation when it's most nutritious and easiest to digest - a process called " green-wave surfing" .

理想情况下，当有蹄类动物迁徙时，它们会同步移动以在植物最有营养和最容易消化的时候觅食——这一过程称为“绿浪冲浪”。

But for ungulates, such as deer, sheep, and moose, it's long been hypothesized that seasonal migration is a learned behavior, passed down from one generation to the next.

但对于鹿、羊和驼鹿等有蹄类动物，长期以来们一直假设季节性迁徙是一种后天习得的行为， 代代相传。

In South Africa the competition for browsing on the higher branches of the acacias and other trees must be between giraffe and giraffe, and not with the other ungulate animals.

在南非，在金合欢树和其他树木的高枝上吃草的竞争必须在长颈鹿和长颈鹿之间进行， 而不是与其他有蹄类动物。