It could probably be justified after the fact by consulting the various uses of melanin in tissues, although it's unclear exactly what pigmented plent "bark".
https://en.wikipedia.org/wiki/Melanin#Other_organismsIt's possible that, whatever benefit melanin gave its ancestor, camouflage was a superior benefit with its new lifestyle or size.
" it is retained as insulation, as its structure traps heat fairly well." That suggests it is useful, but it only lives in tropical environments. (Admittedly, subtropical habitats don't exist in Alpha yet, and having some insulation would probably help for those.) Do the small babies lose heat faster, especially in shaded environments, simply due to their small size, and the bark helps counteract that? If so, it's odd (but still excusable) it's not on the legs, since the legs would cool faster.
"Because it evolved its long legs so quickly," Can you elaborate? Did it not have much time to change up to this arbitrary point in time? Did it have a bunch of lucky, drastic leg-lengthening mutations spread rapidly through the population, rather than gradual, whole-limb transformations?
" to blend in with the dark trees." That suggests intention, which is okay for Shrogs making spears or other intelligent organisms, but not here.
I like the art and design.
This post has been edited by Coolsteph: May 15 2021, 10:50 AM