2. Neotropical rattlesnake, South American rattlesnake, Yucatan rattlesnake (Crotalus durissus)
LD50: 0.17
This snake is distributed throughout Central and South American continent except for the Andes Mountains. Though it prefers drier habitats, like deserts, savannahs and grasslands, it can also be found in different ecosystems such as forests. It has many common names, since it is much seen and encountered by people. It is a large snake, being around 4.9 feet long on average. There are several subspecies of this snake, but nevertheless, they have same diamond shaped pattern on the dorsal (back) side, and the coloration varies from region to region.
blu fish design/Shutterstock.com
