The green anaconda, also known as the giant anaconda, emerald anaconda, common anaconda, common water boa, northern green anaconda, or akayima, is a semi-aquatic boa species found in South America and the Caribbean island of Trinidad. It is the largest, heaviest, and one of the longest snakes in the world.
If The Nightmare Before Christmas characters were animals
Exactly what it says in the title. I guess you can add characters like Zero, the Wolf Man, etc. if you must, although it's kind of obvious what animals they would be.
