3D brain of the common shrew, reconstructed from in vivo MRI scans. Different colors show different brain regions: neocortex (blue), olfactory bulb (light blue), enthorinal/piriform cortices (grey), ...
If you fancy starting a career in 3D animation you might be interested to know that the latest Blender 3D animation software has launched this month and is now available to download as Blender 4.0.