Just a simple question for people knowledgeable in biology: what are some specific examples of determining someone's age by studying thier body? I know you can use bones and teeth, and perhaps hair or something, but what specifically is it that the coronor, let's say, looks for to determine accurate age in a cadaver? Are there layers of cacium on the bones, like rings in a tree trunk, or what? More importantly, what is a non-conspicuous way of telling someone's age if a body were intentionally fabricated to look older? (nevermind how). p.s. this sounds creepy I know; I'm writing a novel.