Osteopontin (OPN), key protein found in avian eggshells, is likely responsible for the shells' structure at the smallest scale and corresponding mechanical properties, like how hard certain layers are ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Fossil discoveries unlock chapters of our planet’s storied ...

Imaging of chicken eggshell across multiple length scales. Electron microscopy with 3D-tomographic imaging, and atomic force microscopy, reveal interior shell nanostructure. This material relates to a ...