Like most other ungulates, goats have horizontal rectangular pupils.

就像大多数其它有蹄动一样，山羊眼珠呈水平方形。

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

热带地区被捕食者大多都是有蹄动，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、羚羊或捻角羚这样野生有蹄类动。

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，对人类和有蹄类动同样致害。

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

它们妊娠期比典型北美有蹄类动更长，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，适合用马新工作机会仍然太少，无法消化失业马。

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

化石表明，有袋类动和有蹄类动数量众多，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，博格和他妻子会穿上驼鹿装，以接近这一有蹄类哺乳动。

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，而它们完全符合大型恐怖鸟猎标准。

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。

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祖先有共同祖先。

So some researchers thought  they were ungulates, too.

所以一些研究人员认为它们也是有蹄类动。

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

它肱骨和股骨较短， 下肢骨骼较长，更像其他有蹄类动腿。

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，比如小马，非常适合大型恐怖鸟猎。

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

从它脚解剖结构来看，他们可以看出它是用三个脚趾站立奇蹄类动，或“奇蹄类动”。

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南美洲种都有蹄子——这一特征与现存有蹄类动有关，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蛋白质与哺乳动家族树中 76 种其他哺乳动蛋白质进行了比较。

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，当有蹄类动迁徙时，它们会同步移动以在植最有营养和最容易消化时候觅食——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，长期以来人们一直假设季节性迁徙是一种后天习得行为， 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高枝上吃草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。