Creature:Slimas

Slimas is a underwater ctreature that attacks their enemies in packs of 6. They have a short life, they only live for 6 to 7 years.

{Taxology}

Origin
They origin from small microbes that attack other bigger microbes, they barely survived. Now the microbes had evolved into small organisms. Now the first 'elders' (the first that evolved)still live in the cities.