The sawfish looks like a shark with a long saw-shaped snout. Indeed, there is a shark with exactly the same snout: the sawshark. However, the sawfish is not a shark but a ray. As with other rays, the mouth and gills are on the underside of the head.
The saw is used to detect prey in the seabed. They also mow their way through a shoal of fish, then eating the injured fish which whirl to the bottom. When the sawfish is attacked, it sometimes defends itself by hitting with its saw.
Saw fish give birth to live young. At birth, the babies’ saws are covered with a web in order to prevent injuring their mother.