Whatever corner of the globe you find homo sapiens in today, you're likely to find another species nearby: Canis lupus familiaris.

今天无论你在世界的哪个角落发现了人类，都可能在附近找到另一个物种：熟悉的狼疮犬。

Canis lupus, or the gray wolf.

狼，或者说灰狼。

The animal was a grey wolf (Canis lupus) akin to those alive today, though it lived a different life from modern wolves, according to the study.

这只动物是一只灰狼（Canis lupus）， 类似于今天活着的狼， 根据这项研究，尽管它的生活与现代狼不同。

We keep all dogs in the same species, Canis Lupus familiaris, because we know that they can breed with one another and make more puppies.

我们让所有的狗都属于同一个物种，Canis Lupus familiaris，因为我们知道它们可以相互繁殖并生出更多的小狗。

But what makes the story of man's best friend so surprising is that they all evolved from a creature often seen as one of our oldest rivals: Canis lupus, or the gray wolf.

但是，人类最好的朋友的故事之所以如此令人惊讶，是因为他们都是从一种动物进化而来的，这种动物通常被视为人类最古老的竞争对手之一：狼疮或者灰狼。