I have a small oddity. Started viewing stuff for haul-to-depot.
A named goblin's bone (stack of five), weighing 78 units. Really heavy. Basic value 0 as of all bones.
Also have 2h-camel bone, stack of 17, weighing 68 units.
Also have 2h-camel bone, stack of 17, weighing 84 units.
I don't think bones should weigh the same as twice a unit of wood logs.
Hah! That sounds like a problem of volume and mass. (I made a thread on that, you know...)
I'm guessing the thing is, you get the same number of bones no matter how big the camel is, but bigger camels have bigger bones. The bones have the same density, but larger volume, and correspondingly, more mass.
Bone should probably be slightly denser than water (1000 kg/m^3, and Toady appears to adhere to kg/m^3 for his density scale), which is slightly denser than wood, but I don't see an easy number in the raws.
Regardless, the real problem is that wooden logs are about half the size of the bones of humanoid-sized or camel-sized creatures.
Goblins have an average "size" of 60,000 in the raws. Size appears consistant through the raws, and appears to correlate to 1 ml per unit, and density of creatures overall should be roughly similar to water, so goblins should weigh 60 kg on average. Camels, on the other hand, have a size of 500,000 in the raws, and by the same logic should mass 500 kg.
The fact that those two creatures are giving very similar masses for what should be radically different bone volumes and similar densities (unless this game actually has bone density mechanics that can result in bones roughly 9 times denser than other creatures, I don't know...) are very strange.
EDIT: This is also odd, because I'm getting goblin bones to typically be weighing in at 7-10 kg in the arena when I throw them to a giant tiger...