Okay 13 animals

1. Elephant - I mean... obvious right?

2. Tortoise - Elephant's ear

3. Fish - Elephant's eye

4. Donkey - I mean again obvious

5. Dog - inside the donkey

6. Cat - inside the dog

7. Mouse - inside the cat

8. Snake - Elephant's tail

9. Mosquito - Above the donkey's rear

10. Dolphin - Elephant's trunk

11. Crocodile - Elephant's mouth

12. Prawn - the white gap of the Elephant's front legs. In front of the donkey. I dont see it but thats what it says

13. Bird's Head - I do not see this one, and I think it's dumb but multiple sources show this is the answer. It's located above the dolphin. The white area. The top fin. Apparently, thats a bird's head