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A look at the making of the classic comedy film.
Inside Story: National Lampoon's Vacation
To find out why sharks are drawn to Hawaii’s volcanoes, biologists Dr. Mike Heithaus and Dr. Frances Farabaugh free dive with one of the most...
Sharkcano: Hawaii
Dr. Mike Heithaus and his team offer new research that may solve why sharks attack dolphins far more than we ever knew.
Sharks Vs. Dolphins: Face Off
Shark biologist Marcus Drymon unravels the mystery of the songbird-eating shark.
Blitzkrieg Sharks
From headline-making discoveries to intimate human portraits: Best of 125 Years features unforgettable stories and explorations that not only...
Exploring New Frontiers: National Geographic at 125