Squareheads
Question: Why do hammerhead sharks have hammerheads?
Answer: The reason hammerhead sharks and their cousins the bonnetheads have
such strangely shaped heads is unknown, but several suggestions have been put
forward as to why they have evolved in this way.
First, it is possible that the “wings” that jut out on either side of the
shark’s head to create the hammer shape act as hydrofoils, aiding the shark’s
movement and adding extra lift. This enables the shark to bank and make rapid
vertical movements more quickly. Secondly, the eyes of a hammerhead shark are at
either end of these…
