Lahessi

The Lahessi are a race of omnivorous creatures both native and exclusive to Medranos. They're unsatiable predators who serve as an in-world mechanism to keep the overabundance under control.

Anatomy
Lahessi are reptile-like creatures.

When they're born, their bodies are elongated and coated with a thick leathery hide. They have multiple thin feet they use to skitter all around and multiple fangs, all sharp enough to shred through any organic matter. They also have appendages that end in a mouth-like clamp and secrete a venom that can paralize their victims.

Most lahessi, however, change their appearance almost immediately, since they're biologically programmed to evolve and adapt to any and all situations in order to predate on Medranians regardless of where they are located.

Their digestive tract consists on simply one long intestine that starts at the mouth and ends at the extreme of their bodies. This digestive system is constantly secreting a powerful acid that can dissolve organic matter in seconds, making the lahessi insatiable.

They have no respiratory system, instead they absorb oxygen from their surroundings (regardless of whether they're on land or water) and have internal mechanism to regulate their metabolic use of oxygen if the quantities taken in are lower than optimal.

Life Cycles
Lahessi are bred in the depths of Medranos for almost a millenium. They begin bursting out of their eggs a few weeks before the millenium ends, billions in number, and exit to the surface where they begin to consume every living being they come accross.

After Medranos is reduced to a barren waste and every single Medranian creature who lived in the past thousand years has been consumed, the lahessi die. When they do, they immediately decompose, and a new Alluring Ancient is born from their corpses, which contain the blueprints of everything that once lived in Medranos. After they finish rotting, a new Medranos is born and new lahessi begin to breed in the depths.