Apex predator
An apex predator was any type of lifeform from a certain region of a world that was at the top of the food chain, and therefore was not preyed upon by any other predator.

On the homeworld of the Kelpiens, apex predators preyed upon Kelpiens, making them their livestock, similar to the way it was for cattle on Earth. Kelpiens could also sense predators approaching, and they were quite fast, allowing them to flee from such predators in a hurry. ()

External link

Lifeform classifications