But overcrowding in sanctuaries has become a problem for the solitary animal.

但是保护区的过度拥挤对于这类珍稀动物来说也构成了问题。

The abundance of prey in rodent-infested granaries drew in these typically solitary animals.

在啮齿动物出没的粮仓里，大量的猎物吸引了这些典型的独居动物。

But in the wild they are solitary animals, so first they need to find each other.

但在野外，它们是独居动物，所以首先它们需要找到彼此。

Manta rays are often solitary animals that live over 20 years in tropical, subtropical, and temperate oceans worldwide.

蝠鲼通常是独居动物，在世界各地的热带、亚热带和温带海洋中生活超过20年。

Both two-toed and three-toed sloths today are solitary animals.

今天的二趾树懒和三趾树懒都是独居动物。

The house cat's wild cousins are solitary animals that roam around Africa, Europe and Asia.

家猫的野生近亲是在非洲、欧洲和亚洲漫游的独居动物。

This is a perfectly natural behaviour because out in the wild, they're solitary animals, and they wouldn't be sharing their food with others.

这是非常自然的行为，因为它们在野外是独生动物，它们并不会分享食物给同类。

This leads us to believe that young Pinacosaurus herded as a defensive behavior, and then switched to be more solitary animals once they had developed the armor that would protect them for the rest of their lives.

这让我们相信，年轻的 Pinacosaurus 群居是一种防御行为，一旦它们形成了可以保护它们一生的盔甲，它们就会转变为更独居的动物。