And so, you know, the nocturnality that we see of large carnivores, including our wolves, right?

因此，你知道，我们看到的包括狼在内的大型食肉的夜行性行为，对吧？

What this means is that that nocturnality is because they are trying to avoid the human predator, right?

这意味着它们的夜行性是因为试图避开人类这个捕食者，对吗？

In it, one researcher hypothesized that the small body size of mammals in the Mesozoic was directly related to their nocturnality.

在这中，一人员假设中生代哺乳的小体型与其夜行性直接相关。

In a 2017 study, researchers looked at more than 2400 species of mammals today and created algorithms to study the genetic transitions from nocturnality to diurnality.

在2017年的一中，人员分析了超过2400种现存哺乳，并创建算法来从夜行性到昼行性的遗传转变。

And so it's possible that the nocturnality of wolves, instead of having anything to do with fear of humans, has to do with tracking their prey.

因此，狼的夜行性可能与对人类的恐惧无关，而是与追踪猎有关。

And in a 2014 paper, when the researchers looked even farther back in the fossil record, they found that nocturnality evolved in vertebrates before the earliest mammals appeared, within a lineage known as synapsids.

而在2014年的一篇论文中， 人员进一步追溯化石记录时发现，夜行性在最早的哺乳出现之前就已经在脊椎中演化出来，这个演化分支被称为兽孔目。