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Gray Reef Shark - Carcharhinus amblyrhynchos
Photo by James Watt

Gray reef sharks appear grayish-brown with white undersides and a black margin on their tail fin. They have a broadly-rounded snout and very large eyes. They can grow to between 6 and 8 feet and are sometimes territorial if other sharks are near. Females give live birth to litter of 1-6 pups, which usually range in size between 15 and 22 inches long. Gray reef sharks school during the day, but are more active nocturnally.

Gray Reef Shark
(Carcharhinus amblyrhynchos)


Coral reefs and drop offs

Fish and larger invertebrates


The status of this species is representative of the populations within the waters of this Sanctuary only, not global populations.

Quick Fact
Gray reef sharks are territorial and will hunch their back, pointing their pectoral fins downward before attacking an intruder.

Learn More
- University of Michigan Museum of Zoology
- Florida Museum of Natural History
- FishBase
- Hawaii’s Sharks