I heard on the news one of the forest supervisers and he said the fire went from 600/700 acres to 50,000 acres in just seven hours. Not much ground wildlife can stay ahead of something that fast. Whata you think?

Most larger animals will move out of harms way but a few get caught for one reason or the other..Smaller animals suffer major losses as do fish and some birds....

The fastest OVERALL advance I have heard about so far on these fires, Leo was about 2 mph. But with wildlife this doesn't really tell the story.
Some wildlife won't try to OUTRUN some big strange something that is after them (and I have observed this first hand) but rather the wildlife will try to HIDE from it. Even the fleet footed jackrabbit will do this sometimes.
Trying to hide from a fire is obviously going to be fatal. And or course there are some poor creatures that get disoriented and simply run INTO the fire thinking they have no other way out.

Anyway you slice it though, it's a terrible thing.