Porcupine quills are hollow, like feathers, and are made from the same material, but then so are hairs, and fingernails, and claws and scales. The... Jan 08, 2015 — Porcupine quills are hollow, like ...

Finding of quill knobs on fossilized velociraptor bone demonstrates that even large dinosaurs were feathered and may have descended from animals capable of flight. Scientists have known for years that ...

I’m not going to lie, I don’t really need to know how to cut and make a quill pen from a goose feather. No one does anymore. But! I was completely fascinated by the process of it. It’s funny how he ...