Egg shells could be used to help grow human bone fragments to repair broken or chipped bones. Bones grow inside the body on a kind of scaffold called the extracellular matrix, which helps guide and ...

3D-printed shell halves allowed researchers to peek inside the cichlid's home and observe the behavior of the mother and her fry during brood care. Shell-dwelling cichlids take intense care of their ...

The nested chambers seen inside this prototype electric water kettle by designer Guillian Graves are 3D-printed, their geometry inspired by nautilus shells—giving the project its name, Nautile. The ...