Sawfish
Sawfishes, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. They are among the largest fish with some species reaching lengths of about . They are found worldwide in tropical and subtropical regions in coastal marine and brackish estuarine waters, as well as freshwater rivers and lakes.
Sawfish
Old stories often describe sawfish as highly dangerous to humans, sinking ships and cutting people in half, but today these are considered myths and not factual. Sawfish are actually docile and harmless to humans, except when captured where they can inflict serious injuries when defending themselves by thrashing the saw from side-to-side. The saw is also used in self-defense against predators such as sharks that potentially may eat sawfish. In captivity they have been seen using their saws during fights over hierarchy or food.