1·An UPDATED family tree of the animal kingdom could radically change the way we think about the evolution of species.
最近更新的动物界系谱树可能从根本上改变我们对物种进化的思维方式。
2·Groups of closely related species belong to the same genus, which in turn are clustered into families, then orders, then classes, then phyla, and finally into kingdoms (such as the animal kingdom).
亲缘关系相近的种被归入相同的属，然后很多属被归入到科，然后是目、纲、门，最后归入界(例如动物界)。
3·In the animal kingdom, there is a crocodile at feeding time, some food is often left in its teeth.
在动物界，有一种鳄鱼在吃食时，一些食物常常会遗留在它的牙缝中。