Orc

Orcs are grey-green, yellow and slime colored, and brown species of goblinoids that are diverged descendants of goblins. They are typically larger, stronger, and more intelligent than goblins.
As goblins reproduce over generations, some of their key traits (skin color, sizes) mutate into more orcish forms.
Orcs reproduce at a rapid pace, though not on the scale of the mass reproductive power of the goblin gulions.