Going around Koh Samui and Koh Tao dive centers is the news that the sharks at Chumphon Pinnacle, which most of us had thought were grey reef sharks, have been identified by a couple of shark experts as bull sharks.
See Bull Sharks of Chumphon Pinnacle
I, too, had thought that they were grey reef sharks, because the bull sharks I've dived with in the past didn't have the black colored tail fins, as grey reef sharks do, and as most of the sharks at Chumphon Pinnacle do. From what I've been reading in recent days, though, such dark fin markings are not uncommon on younger bull sharks, and can be seen on some fully adult individuals.
Chumphon Pinnacle is now one of only a few dive sites around the world where there is a very good likelihood of seeing bull sharks (the dive site Big Scare in the Bat Islands of Costa Rica is one, there's another somewhere in South Africa, and one or two in the Bahamas). Not to mention the chance of seeing whale sharks ...
See Bull Sharks of Chumphon Pinnacle
I, too, had thought that they were grey reef sharks, because the bull sharks I've dived with in the past didn't have the black colored tail fins, as grey reef sharks do, and as most of the sharks at Chumphon Pinnacle do. From what I've been reading in recent days, though, such dark fin markings are not uncommon on younger bull sharks, and can be seen on some fully adult individuals.
Chumphon Pinnacle is now one of only a few dive sites around the world where there is a very good likelihood of seeing bull sharks (the dive site Big Scare in the Bat Islands of Costa Rica is one, there's another somewhere in South Africa, and one or two in the Bahamas). Not to mention the chance of seeing whale sharks ...