[Zeke]

A lot don't make it. Birds can fly out. Deer and other animals can smell smoke way before you can. So they likely follow a path that smells less. They are canny and communicate. Some can dive into water and stay somewhat submerged getting a breath when needed. IDT that's ideal and maybe something like a dog wouldn't know to do that.

But I think you've seen where a lot of domestic and semi domestic animals die. Probably the smoke gets them before the actual fire. Remember, O2 levels are really low in the fire. I think that's part of the definition of death by smoke.

You're probably right about burrowing animals and we wouldn't really know.