Did Fish Develop Jaws? Exploring the Evolution of Ancient Vertebrate Bite Mechanisms
Fish developed jaws from embryonic structures called pharyngeal arches. The first arch, named the mandibular arch, forms the jaw, while other arches develop into gills. This shared developmental origin shows the evolutionary connection between jaws and gills in fish. This development marked a profound change in vertebrate anatomy and feeding mechanisms. Jaws provided these fish … Read more