Huh, thanks for the detailed reply! I suspected some of them must have something extra going on to help their time in the water, but wouldn’t have thought this!
Were you able to feel how dry the otter was through the sealed fur, or was it sealed enough that you couldn’t really tell?
Oh yeah, that’s a good point! I’d typically be more concerned with the drying out part for a lot of aquatic life, forgetting about the UV exposure issues.