And that's nothing compared to VY Canis Majoris, the largest known star, which is a staggering two billion kilometers across.

这与目前已知的最大恒星大犬座相比，简直是小巫见大巫。大犬座的直径高达20亿公里，十分惊人。

Makes Canis Majoris look like a night light.

能让大犬星座都黯然失色。

About a third of all the specimens at La Brea are Canis dirus.

拉布雷亚 (La Brea) 的所有标本中约有三分之一是 Canis dirus。

Canis lupus, or the gray wolf.

狼，或者说灰狼。

And the most massive of these was Canis dirus, the dire wolf.

其中最大的是恐狼 Canis dirus。

Sirius is part of the constellation Canis Major, the Greater Dog, near Orion's belt.

天狼星是猎户座腰带附近大犬座的一部分。

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。

According to Greek and Roman mythology, Canis Major represents one of Orion's hunting dogs, eternally chasing after Lepus, the rabbit, nearby.

根据希腊和罗马神话，Canis Major 代表猎户座的猎犬之一，永远追逐附近的兔子 Lepus。

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。

Most of the teeth belonged to two species of fish known for their nutritional value and good taste – the Jordan himri (Carasobarbus canis) and the Jordan barbel (Luciobarbus longiceps).

大部分牙齿属于两种以营养价值和美味著称的鱼类——类犬魮和鲤科巨型倒钩鱼。

But the point is, overall, Canis dirus had far fewer broken bacula than you'd expect -- evidence that these wolves were well-adapted to a lifestyle where sexual competition was fierce.

但关键是，总的来说，Canis dirus 的杆骨断裂比你想象的要少得多——这表明这些狼很好地适应了性竞争激烈的生活方式。

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。