Creeping Terror

The Creeping Terrors are slug-like aliens and are the main antagonists of the 1964 film The Creeping Terror.

Description
Creeping Terrors are large slug-like creatures with green skin covered in shaggy hair. They have numerous stalked eyes on top of their heads, with a gaping jaw filled with jagged teeth along its chest cavity. This mouth is capable of opening large enough to swallow a full-grown human whole.

Creeping Terrors are considered omnivorous after some case study, although they've only been observed to consume primarily meat.

Behavior
Since they are incapable of speech, it is almost impossible to determine the intelligence of these creatures. They have been shown intelligent enough to send back their own DNA to their home planet in case of failure or death on the current one. This would also imply that these creatures can re-create themselves, though the process is unclear.