Every body, explorable
A cited anatomical atlas you can read, search and traverse — human first, dog beside it, over one species-agnostic model. Free, no account, and every claim carries its source.
The 3D model is not the body
The body here is a structured biological graph: systems, structures, and 64 typed relationships between them. A mesh is one representation hung off a node of it. That is why almost every question this atlas answers is answerable with no geometry loaded at all, and why most of the body — which nobody has modelled — is still fully searchable and citable.
Every claim is cited
Every structure, every relationship and every process carries its provenance: which ontology or textbook it came from, which version, when it was retrieved and under what licence. A page that states a fact with no source is a bug here, not a shortcut.
More than one species, on purpose
Human and dog run through the same registry, the same loader, the same validator and the same viewer. Nothing in the engine knows what a heart is. That is what makes comparing them honest rather than a special case.
What this is not
This is an educational and informational anatomy platform. It is not a diagnostic system and not a substitute for a clinician. There is no verb here that takes a symptom and returns a condition, and adding one would be a different product.
Questions
Do I need an account?
No. Reading, searching, comparing, path-finding and the 3D viewer are all free and anonymous. A Leumas membership adds saved views, annotations, comparison sets and API keys.
Is the 3D accurate?
The geometry is schematic — primitives at roughly the right position, not organ shape. The viewer badges it as such, and any answer that shows it says so.