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vipers & rattlesnakes

Viper
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Viper

With more than 200 species, vipers are a diverse group of snakes. The group includes New World pit vipers (copperheads, cottonmouths, and rattlesnakes), as well as Old World “true” vipers, which lack heat-sensing pits in front of the eyes.

All vipers are venomous, delivering venom through a pair of hollow, hinged fangs. Explore these truly awesome snakes.

Encyclopedia Britannica
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Deadly Venomous Viper

Deadly Venomous Viper

In Southeast Asia, one snake is responsible for nearly half of all snakebites. Sensing the heat of prey through pits on its face, the white-lipped green pit viper delivers a toxin fatal to small animals. More...

Video
National Geographic
Cottonmouth: Agkistrodon piscivorus

Cottonmouth: Agkistrodon piscivorus

Many people confuse harmless water snakes with the cottonmouth, a pit viper with a triangular head and a white mouth lining. This southeastern U.S. resident displays its white mouth to intimidate. More...

Article
U.S. Geological Survey
Laurence M. Klauber: Mr. Rattlesnake

Laurence M. Klauber: Mr. Rattlesnake

Although he died in 1968, Laurence M. Klauber remains unique among rattlesnake experts. In his lifetime he described 53 new species and subspecies. Read more about Mr. Rattlesnake. More...

Profile
DesertUSA
New Ruby-Eyed Pit Viper Discovered

New Ruby-Eyed Pit Viper Discovered

Don’t be fooled by its beautiful looks. The ruby-eyed green pit viper of Vietnam and Cambodia is a cunning hunter. Check out these photos. More...

Images
National Geographic
Night Creatures of the Kalahari: Pit Viper

Night Creatures of the Kalahari: Pit Viper

Seeing double? Discover how the combo of night vision and the heat-sensing input from its pits help the pit viper close in on its prey. More...

Article
NOVA/PBS
Slow Motion Viper Strike

Slow Motion Viper Strike

With the cameras rolling, an eyelash viper moves in for the kill…on a warm water balloon. Catch the amazing footage. The balloon didn’t stand a chance! More...

Video
BBC
Some Rattlesnakes Losing Their Warning Rattle In South Dakota

Some Rattlesnakes Losing Their Warning Rattle In South Dakota

A rattle-less rattler? Why would a rattlesnake lose its rattle? Is it a genetic advantage or just an abnormality? Find out here. More...

Article
NPR
Survival Guide: Rattlesnake Bite

Survival Guide: Rattlesnake Bite

Memorize this important strategy for survival in the unlikely event of a rattlesnake bite. Most rattlers would rather run than fight, but just in case, here’s what to do — and not do. More...

Video
National Geographic
Timber Rattlesnake Jigsaw

Timber Rattlesnake Jigsaw

Set the level to easy, medium, or hard — the puzzle pieces get smaller as the level increases. Then, try to make heads and tails of the rattlesnake. Good luck! More...

Game
GamesFree.me
Viperidae

Viperidae

From adders to copperheads to rattlers to vipers: View images of the Viperidae, the varied and often colorful family of venomous snakes found throughout much of the world. More...

Images
University of Michigan

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