Worldcraft Journal here:
http://www.furaffinity.net/journal/2242679/

I chose: Vermin 1)A scavenger that resides in corpses.

pronounced SLAY-ESH

It takes cover in corpses due to it's fragile nature, it uses the bones
that are in good repair to protect itself when it moves from one dead to another- young burrow in the soil until they find proper bones to shelter themselves in,

they also build up toxicity naturally by feasting on the rotting meat of higher predators as a specialty. they also tend to be cowardly, but a severely injured animal would be devoured alive
with it's combined rasp-like tooth covered tongue and two specialized pseudopods that dig and expand into tissue, ripping it apart from the inside.

The whole creature lacks any bony support of it's own, and can escape
almost any attempt to contain it, though they are loath to leave their bones behind, they can and will when they are captured by one or more of their bones, or one becomes caught in bones of another corpse.

every so often when huge, tougher animals go down, many of these vermin will gather and mate inside it, leaving nothing but a huge scraped-over bone-yard which the young then break down to make their own armor
until they are toxic enough streamline to a few dozen or less.
bone-yards such as these have often been found to contain the remains of hundreds of different species.

adult and grubling alike all have a strict diet of carrion, and do not even eat
vegetative matter in the stomachs of the dead, it is left with the hollowed out, broken bones. stands of trees have been known to grown from corpses stripped by this species, which normally, isn't a
problem. however, all plant species react the same- so giant stands of carnivorous plants that receive this treatment often spring up overnight.

It has water and fat stores in it's flesh, if it loses a piece it will grow it back in a matter of hours. Pale and partly translucent, it's rasping teeth and tiny spines that circle each of it's segments are the only solid parts of it's body, it is very muscular, however it's outer layer looks fatty and is covered in veins that carry it's toxic blood close to the surface in case anything cared to try and take a bite.

If pried out of their bones, they must find suitable cover or new bones to keep from drying out, they are slow moving and generally peaceable unless you are dead.