One way successful cynodonts, like Thrinaxodon, might have done this is through burrowing.

像棱齿兽这样的成功犬齿兽可能就是通过挖洞来做到这一点的。

One that's of special interest to us mammals: the cynodonts.

对我们哺乳动物来说特有的一种：犬齿兽类。

Meanwhile, the descendants of those little cynodonts persisted through the entire Mesozoic Era, hiding in the dinosaur's shadows.

与此， 些小型犬齿兽的后代在整个中生代期都存活了下来，在恐龙的阴影下隐藏着。

The oldest known example of a cynodont burrow is dated to around 251 million years ago — just at the boundary between the Permian Period and the Triassic, when the Great Dying was coming to a close.

目前已知最古老的犬齿兽洞穴可以追溯到约2.51亿年前——正好处于二叠纪和三叠纪的交界处，也就是大灭绝即将结束的候。

Cynodonts probably also survived thanks to their ability to avoid predators and keep a low profile.

犬齿兽很可能也因为它们能够躲避捕食者并保持低调而幸存下来。