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有蹄类。

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更，平均为八个月。

Meanwhile, on the forest floor, some early, ungulate-like mammals began to take over.

与此同时，在森林地面上，一些早期的 有蹄类哺开始占据主导地位。

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的祖先有共同的祖先。

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，更像其他有蹄类的腿。

Before they swam effortlessly underwater, cetaceans evolved from terrestrial  ungulates that slowly adapted to an amphibious lifestyle.

在能够毫不费力地在水下畅游之前，鲸类是从陆有蹄类进化而来的， 后来逐渐适应了两栖式。

This was the environment that gave rise to the very first perissodactyls, hoofed mammals with an odd number of toes.

这是产第一批奇蹄类的环境，奇蹄类是有奇数个脚趾的有蹄类哺。

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种都有蹄子——这一特征与现存的有蹄类有关，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的蛋白质与哺家族树中 76 种其他哺的蛋白质进行了比较。

Within this group, analyses usually place bats with a clade that contains pangolins, carnivores, and ungulates, or as the sister group of shrews, moles, and maybe hedgehogs.

在这一组中， 分析通常将蝙蝠与包含穿山甲、食肉和有蹄类的进化枝放在一起，或者将其作为姊妹组， 包括鼩鼱、鼹鼠，也许还有刺猬。

In 2007, paleontologists in Kashmir, India, found the fossil of a 47 million year old hoofed creature the size of a house cat that they named Indohyus.

2007 年，古学家在印度克什米尔发现了一种 4700 万年前有蹄类的化石， 大小与家猫相当， 他们将其命名为 Indohyus。

It can thus obtain food beyond the reach of the other Ungulata or hoofed animals inhabiting the same country; and this must be a great advantage to it during dearths.

因此，它可以获得居住在同一国家的其他有蹄类或有蹄类无法获得的食； 这在饥荒期间对它来说一定是一个很大的优势。

And, the paleontological evidence, the fossil evidence and evidence from looking at the DNA of living whales and other animals now really strongly points to whales being very closely related to hoofed mammals.

古学证据、化石证据以及对现代鲸类和其它DNA的研究结果现在真的有力地指向鲸类与有蹄类的亲缘关系非常接近。

There, animals including snow leopards and mountain ungulates, are being protected by ecotourist projects run by non-governmental organisations, or NGOs - organizations trying to achieve environmental or social aims outside of government control.

在那里，包括雪豹和山地有蹄类在内的正受到非政府组织开展的态旅游项目的保护，这些组织试图在政府控制之外实现环境或社会目标。

Except by assigning such general and vague reasons, we cannot explain why, in many quarters of the world, hoofed quadrupeds have not acquired much elongated necks or other means for browsing on the higher branches of trees.

除非给出如此笼统而模糊的原因， 否则我们无法解释为什么在世界许多地，有蹄类四足的脖子并没有变得很， 也没有其他式在较高的树枝上觅食。