07/09/2026
Meet the Hammerhead Shark, an unmistakable group of sharks from the family Sphyrnidae, found in warm coastal waters around the world.
Their unusual hammer-shaped head is known as a cephalofoil. Far from being just for show, it gives them a wider field of vision and spreads their sensory organs across a larger area, helping them detect movement and electrical signals hidden beneath the sand. 🔨
🐟 Hammerheads feed on fish, squid, crustaceans and even other sharks. Stingrays are a particular favourite, and their wide heads can help pin rays against the seabed while they take a bite.
They can be found around coral reefs, coastlines and open ocean habitats. While many sharks are solitary, some hammerhead species gather in spectacular schools containing dozens or even hundreds of individuals.
Size varies greatly between species, but the Great Hammerhead is the largest and can grow to around six metres long. Look out for the tall dorsal fin, streamlined body and, of course, that instantly recognisable head. 🌊
Despite their intimidating appearance, Hammerheads are generally cautious around divers. Sadly, many species face serious threats from fishing and the shark fin trade, making their protection incredibly important.
Have you ever spotted a Hammerhead Shark on a dive? Let us know where! 🤿
