
Many forms of life are so unique that no other living or fossil species could have evolved into them. A prime example is the hammerhead shark. Most sharks have a similar body shape with a pointed or bullet-shaped head, but the unique design of hammerhead sharks is a radical departure from this norm.
All sharks share a common feature: the ampullae of Lorenzini. These are jelly-filled sensory pores that detect electric fields generated by ocean creatures. In most sharks, these organs are located in the snout. However, in hammerhead sharks, they are spread across both ends of the head. This gives them greater resolution and helps locate prey more accurately.
The unique design of hammerhead sharks enables them to make quick, sharp turns to ambush prey effectively. The shape also provides a binocular field of vision of 48 degrees, compared to about 15 degrees in normal sharks.
Attempting to find an evolutionary explanation for the hammerhead’s distinctive design is nearly impossible. There is no fossil evidence showing gradual changes in the heads of ancient sharks. This remarkable design is the work of an exceptionally skilled engineer. We believe that engineer is God.
— John N. Clayton © 2025
Reference: The 2025 BBC series on unique life forms and the BBC Learning Hub










