Edna: Your boy's suit I designed to withstand enormous friction without heating up or wearing out, a useful feature. Your daughter's suit was tricky, but I finally created a sturdy material that can disappear completely as she does.
Viper redirects here. For other uses, see Viper (disambiguation). The Viperidae (vipers) is a family of venomous snakes found in most parts of the world, excluding Antarctica, Australia, New Zealand, Madagascar, Hawaii, various other isolated islands, and north of the Arctic Circle. All have relatively long, hinged fangs that permit deep penetration and injection of venom.
The speed of the viper is probably the most dangerous thing about it, as people can be struck by vipers before they even realize they've encountered a snake. The most famous feature of the viper is its hollow fangs, which fold back against the roof of the mouth when not in use. Vipers are also capable of controlling the amount of venom they inject into prey, making a calculated decision which is based on the size of the prey.