Fish glue is a type of adhesive made from the collagen found in fish skins and bones. It has been used for centuries in various applications, including woodworking, bookbinding, and art restoration. The glue is created by boiling fish parts to extract the collagen, which is then dried and powdered for use. This natural adhesive is known for its strong bonding properties and flexibility. Unlike synthetic glues, fish glue is non-toxic and biodegradable, making it an environmentally friendly option. It is particularly favored in traditional crafts and by artisans who appreciate its historical significance and effectiveness.