Mexican West Coast Rattlesnake (Crotolus basiliscus) by Kai Rösler. A venomous pit viper species found in western Mexico. The specific name is derived from the Greek word for king, basiliskos, and alludes to this snake's large size and potent venom.
Chamaeleo pardalis, chameleon species found in the forests of Madagascar. Chameleons can produce a wide range of colours and patterns on their skin, more to express mood than blend in the different environments - photo David Parks
Variable Bushviper - Green bush viper, variable bushviper, leaf viper, common bush viper, bush viper or tree viper (Atheris squamigera). A venomous viper species found in West and Central Africa. By Roger de la Harpe