Do they do fireworks

Rivers of light is the normal show here.

Instead of fireworks they do Rivers of Light which is a water and light show which is spectacular. I recommend getting a fast pass, get there a little early and you'll have an awesome view of the show. Just before the show check out the trees at the far end. You'll see fire flys and shadows of different animals. It is definitely worth while to see.

I have never heard that Disney has done fireworks at Animal Kingdom. I would guess it would scare the animals.

Only on special dates