According to my animal-finder, there's still one left to find on Black Isle, but when I revisit the inside, the map says there are no animals left.
Not to mention, my pearl-finder says there's a big cluster of them there as well.
Are they in an area I don't have access to yet?
Currently, I'm in the slaughterhouse attempting to rescue Pey'J.

If I remember correctly, the pearls and animals are in the crater of a volcano on Black Isle, so once you've finished the slaughterhouse section, you'll sneak around town a little more, then find a way to get up to the crater.

Awesome, thanks!
Yeah, I seem to remember the bartender in the pedestrian section talking about treasure in said volcano. XD

You'll need the Beluga to get into the crater..but if I remember this right, the crater isn't in the Black Isle, it was on the mountains..but when you'll get the flight stabilizer and the engine for Beluga, you're good to go dude/dudette.