Biological anthropology · osteology
A skeleton is a record of a life — how long it lasted, how it was lived, and sometimes how it ended.
Forensic anthropology asks four questions of a set of remains: who, how old, how tall, and what happened. The answers are written in bone — in the shape of a pelvis, the fusion of an epiphysis, the length of a femur, the edge of a fracture. Learn to read them.
Two hundred and six bones in the adult body. Start by knowing them on sight — and, where they come in pairs, knowing your left from your right.
Name the highlighted bone
Loading…
A set of remains arrives. Work the biological profile in order — sex, then age, then stature, then population affinity — using only what the bone actually supports.
Estimate
Loading…
Everything that happens to a body after death leaves a signature. Taphonomy separates what happened around the time of death from what the ground, the weather and the animals did afterwards.
The reading
Loading…
The criteria, the numbers, and the limits of what a skeleton can tell you.
The os coxae is by far the most reliable indicator. The skull is second best. Nothing else comes close, and none of it works reliably on subadults.
Precision falls off sharply with age: a subadult can be aged to within a year or two, an older adult only to a broad range.
Forensic anthropologists can estimate a decedent’s likely population affinity from cranial morphology, because human populations that were geographically separated accumulated small, clinal differences in skeletal shape. That estimate has real forensic value: it helps narrow a missing-persons search to the social category the person was likely identified with in life.
But it is not a biological race. Human variation is clinal and continuous — it grades gradually across geography rather than sorting into discrete types. About 85% of all human genetic variation occurs within any single local population, which means two people from the same town are usually more different from each other than either is from someone across the world. The categories used in casework are social categories in the country where the case is being worked, and a good report says so explicitly.
Handle every case as what it is: a person, and someone’s family still waiting for an answer.