rare species of animal

While one might think that these oddities are examples of some kind of moral breakdown in the animal kingdom, it turns out that hybridization among distinct species is not so rare.

对于某些道德洁癖者来说，这种怪胎的出现是动物王国道德沦陷的最好例证，但事实证明，不同物种之间的杂交并不是什么罕见的奇观。

With majestic trees festooned with orchids, bromeliads, ferns, vines, and mosses, it’s home to a multitude of rare animal and plant species.

雨林中宏伟的参天巨木被兰花、凤梨、蕨类、蔓藤以及苔藓类打扮得五颜六色，这片雨林同时也是为数众多的稀有动植物的家园。

The manufacture and use of tools was once believed to be uniquely human, but we now know that we share this ability with some animal species, although it seems rare.

制造和使用工具曾一度被认为是人类所特有的本领，但现在我们了解到，某些种类的动物也会制造和使用工具——尽管这样的动物似乎比较少见。