Grim

Grim are creatures of unknown origin. They are described as:

"Anaconda + Giant Mantis + Lion's Teeth + The Head of a Man" -Eric Shutter

Contact with a Grim results in deadly sicknesses still being researched. Grim seem to have silvery film-like oil-blood that causes paralysis and neurological failure in other organisms. Grim are genetically immortal, and grow larger with age, however, they will continue to progressively age and get larger until they collapse under the Square Cube Law. Grim stay in packs until they are roughly 35 feet long, at this point, they become solitary predators. Grim are a very unusual species, they have no subspecies, and reproduce via binary fission. Grim may be related to Prototors.