40d:Severed body part
In combat, bladed weapons or good old-fashioned blunt trauma can sever body parts, often quite dramatically. In fortress mode, these are collected by your dwarves as refuse and deposited in an appropriate stockpile, where they are left to rot (or are butchered, if you so allow) and produce bones. While there's nothing like a rotting pile of dismembered limbs to brighten your day, the glut of refuse hauling jobs may distract your dwarves from more important tasks. It is recommended that you forbid any severed body part that is not the corpse when butchering dismembered bodies of edible wild animals, and unforbid them once the proper corpses have been processed.