Papillion was this prison-break movie released in 1973, starring Steve McQueen and Dustin Hoffman; it takes place sometime in the 1930s. There is a bizarre amount of wildlife on screen:
1. Little crabs when arriving in French Guiana.
2. Lizards on roof.
3. Alligator when on work detail.
4. Butterflies on work detail.
5. Snake on work detail.
6. Roach in solitary.
7. Bat in solitary.
8. Large crab in solitary.
9. Millipede in solitary.
10. Dog on leper island.
11. Turtles on boat.
12. Sharks on final island.
13. Pigs and goats on final island.
14. Grasshopper on final island.
There are probably more, but that's all I can remember. It's an interesting idea, to use animals as shorthand for different situations or conditions. Not something that would work in every film, but it worked here just fine.