From ARK: Survival Evolved, a creature known as the Achatina is just a giant snail. This is the first in a series of creatures based on those from the game ARK: Survival Evolved. This one is native to the jungles of Chult. Dossier, courtesy of ARK: Survival Evolved Wiki: 

"Found mostly in marshes and jungles, Achatina limusegnis is a very slow, very non-threatening land mollusk. It might be the simplest creature on the Island to hunt, and while it only provides a small amount of meat and chitin, an easy meal is always of value on the Island.

Unlike nearly every other creature on the Island, Achatina does not defecate normally. Instead, it secretes a thick, sticky substance. Achatina leaves trails of this slime, but the trails are so thin that they crumble to dust quickly."