Green Tree Python
Diamond rattlesnake
In the U.S., the largest snake – is the diamond rattlesnake. It grows to a length of 2 meters. Diamond rattlesnake is considered among the most poisonous rattlesnake. The tip of its tail, as well as other members of the species of rattlesnakes, adorns the rattle of the hardened remnants of the old skin. (Photo by Fred LaBounty)
A horned viper (Wild Arabia - BBC)
Green Python, Morelia viridis, Australia, by Bruce Thomson
A western diamondback rattlesnake (Earth Unplugged - BBC Earth)
Photo by Michael Fitzsimmons. Full portfolio at www.500px.com/Mfitz
Adder in Gorse (3) (by Peter G Trimming)
Bence Mate, Fly to Eye, Natural World Winner, 2010. Picture: Bence Mate
A satiny parrot snake (Leptophis depressirostris) swallowing a frog. Picture: Bence Mate/NPL / Rex Features