Found the coral reefs and atolls of the Pacific and Indian Oceans, this shark can be very fierce when it perceives a threat. The grey reef shark is known for its aggression, and has been seen using threat-display behavior in the presence of divers. This shark assumes a contorted body posture as it prepares to fight. It lowers its pectoral fins, arches its back, and swims in an exaggerated fashion with its snout raised. Several attacks on divers have been reported, but these usually took place when the shark was alone and felt threatened.
Most sharks use aggression primarily in their quest for prey.
They do not usually attack others of their own species. However, the aggressive grey reef will often choose fight over flight. Constantly swimming in popular diving areas, the grey reef shark is often confronted by divers that may be perceived to the shark as competitors for food. Although some tales of the grey reef shark encounters are possibly exaggerations, avoiding close contact is the best way to remain safe from a potential attack. Although this shark is active during the day, often seen forming and swimming in schools, it is most active at night while in search of food.