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The Great Barracuda has two rows of very sharp teeth! The outside edge is like serrations on a saw, while the inside row consists of large separated daggers.
This large, somewhat creepy-looking fish, has a habit of following divers around. Attacks on humans are rare, most often attributed to a barracuda attempting to steal prey from spear-fishermen. Barracuda may also confuse a shiny object for food. Remember to take off your shiny rings when diving!