What exactly are the leading Sorts ofFish?
Fish are categorized into a few major varieties based on their own skeletal construction and respiratory units:
Bony Fish (Osteichthyes): This group contains species like salmon, trout, and cod, accounting for approximately 96% of all fish species. Their skeletons are made of bones, and they have got operculum (gill covers) for breathing.
Cartilaginous Fish (Chondrichthyes): Fish like sharks, rays, and skates slide into this group, characterised by skeletons manufactured from cartilage. They typically have many gill slits without having handles.
Jawless Fish (Agnatha): Primitive fish like lampreys and hagfish belong to this class. Unlike other fish, they absence jaws and depend on suction or other exceptional feeding strategies.