Troglodytes

Although viewed as a seperate species, it could be argued that Troglodytes (Or "Trogs" as they're commonly reffered to) are simply a "specialized" form of Lizardman...They share very much of the same things, biologically, as their more primitive cousins, save one thing...Unlike the many species of Lizardmen, Troglodytes are for all accounts and purposes Endo-Thermic like Mammals and the various Avian species...When along their evolutionary line this occured is unknown, but it's believed that it is because of this endo-thermic nature that Troglodytes have risen to a much more "civilized" state than their more barbaric reptilian cousins the Lizardmen...
Let it be said though that "civilized" is subjective terminology..."Trogs" are by no means considered a "rational" nor "uplifted" race by any means...To say that Trog society is a brutal one is to underestimate the actuality of it...Carnivorous to the last, it's been reported (and is in fact probably quite factual) that young Trogs that fail their "Graa" (believed to be the equivelent of a "right of passage") are killed upon their failure and served as a feast to the other young Troglodytes as a symbol of warning...This right of passage usually consists of allowing the Trog in question to go into an area inhabited with one of the prey races Trogs are known to covet(whether it be Elven, Dwarven, Human, ect.) and bring something of importance back (usually a living breathing specimen that can be served as food for the Elder Chieftan Troglodytes...When this right has been fullfilled, the Young Trog is then allowed to partake in a still unknown brew/potion that then begins turning the Troglodytes scales from their usual Green coloration, to that of a "worthy" adult's color of Red...These shades vary from Trog to Trog...some being very bright, while others are so dark as to almost be Violet...
Troglodyte skin is packed with bony spines, horns and calcited cluster deposits which make their bare skin as resiliant as some forms of smithed armor...This has, in the past, been a very sought after item with many true adventurers, for it's said and rumored that a Troglodyte cloak can deflect assassin's unseen arrows...