Hi. I'm trying to write some anatomical systems for a game i'm coding, and i need some good data to work from. Our game is about dogs, not humans, but i figure a human will be close enough What I'd really like is a case study of a specific organism, and i'd like to know the compositions, by volume, of the various types of matter in its body. Specifically i'm interested in: Muscle, bodyfat, bones, and etc (everything else can fit under one group as far as i'm concerned. Blood, organs, glands, etc) I have some rough values that i found elsewhere for masses, that an average human is roughly 40% muscle, 20% fat, and 40% other matter, but these values in isolation aren't actually useful to me without some volume data. My end goal is to calculate a reasonably accurate mass for a creature, given its volume, and the known densities and volume ratios of the aforementioned matter types. Volume is something i can find quite easily by examining the creature's mesh in code, so i have that value to a high precision. Can anyone help out with some studies, websites, or general biological data?