Human skeletons are often described in neat textbook numbers, but real bodies are far messier and more interesting. Extra ...

The accessory navicular is an extra bone growth usually found on the inside part of the foot, near the navicular bone. It’s not part of a typical bone structure in humans, and therefore, not many ...

This is a rare peek at how cartilage transforms into bone. In this image, you can see cartilage (in purple and white), blood vessels and cells (in yellow), and other specialized cells that create ...