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。

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。

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。