They are communicative, social beings that live in herds.

它们是善于沟通的群居动物。

In other words, they live in groups, they live in herds.

换一句话说，它们成群生活。

That horn can cause some fatal wounds and the fact that they lived in herds makes them that much more dangerous.

它的角能造成致命伤害，而且它们成群生活，使它们更危险。

Animals lived in herds for many other reasons.

出于许多其他原因， 动物群居。

Second, just because edmontosaur lived in herds doesn’t mean they migrated.

其次， 仅仅因为埃德蒙顿龙群居并不意味着它们会迁徙。

Unlike other species of deer, moose do not live in herds, preferring to be mostly alone except when mating or caring for calves.

相比其他的群居鹿类来说，驼鹿更喜欢独自生活，除非到了交配或者照顾幼崽的时候。

Living in herds, for example, provides animals extra protection from predators.

例如，群居可以为动物提供额外的保护， 使其免受捕食者的侵害。

Roosevelt elks live in the forests of western United States, they live in herds, but they do not migrate.

罗斯福麋鹿生活在美国西部的森林中， 它们群居，但不迁徙。