Sand Tiger Shark National Geographic

Find out why this shark is not nearly as fierce as its protruding teeth might suggest. See how surface air breathing sets them apart from their relatives.

Scientists unravel mystery of cannibal shark embryos

Video National Geographic's 'SharkFest' contestant talks shark

Tiger Sharks: Swimming With an Awesome Predator

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Sharkfest Cannibal Sharks documentary shows gruesome shark bite scenes

National Geographic Kids Everything Sharks: All the Shark Facts, Photos, and Fun That You Can Sink Your Teeth Into: : Ruth Musgrave: 9781426307690: Books

NATIONAL GEOGRAPHIC 80473 Shark Teeth Dig Kit : Toys & Games

National Geographic Brasil

This Video Will Change Your Perception On Sharks, Sharkfest