Extruded Fibers
This fiberous material does not grow, but it is an extruded organic protein which comes in a variety of forms all of which have a hierarchical structure, similar in many respects to block co-polmers. It possess exceptional mechanical properties and is stronger than steel when compared on a weight to weight basis. You can find it worldwide, although it takes on many shapes and sizes. Compare it's dimensions with that of other fibers in this library.