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If you're talking fang size, the Gaboon viper is the best-endowed snake on the planet—with fangs that can reach up to 2 inches (5.08 centimeters) in length! The fangs fold back against the roof of the snake's mouth…then snap out in an instant to strike.
Photograph copyright Joe McDonald/CORBIS

National Geographic News: Snake Wranglers

Do spitting cobras really "spit" venom? Which snake causes the most human deaths? Get the answers to these queries and more in the gallery below.

Published January 1, 2003