The Sawfish is a type of ray named for its long, saw-like snout, called a rostrum. They are very unusual-looking fish, and very large, and are very popular in aquariums; however, they are considered endangered in the wild.
Sawfish use their rostrum, which is covered in sensitive pores much like a shark's, to detect prey hiding in the sand, before smacking the prey to stun them before the sawfish feeds.
Although the sawfish usually moves at a calm, leisurely pace, they are capable of using their powerful rostrums to defend themselves, even being able to hold their own against sharks. Curious divers have been known to be on the recieving end of a sawfish's rostrum on occasion, but fatalities are rare.