A large Totonacan Rattlesnake (Crotalus totonacus) uses its tongue to sample the air in the mountains of Tamaulipas, Mexico. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of ...
The Black-tailed Rattlesnake (Crotalus molossus Baird and Girard, 1853) is a wide-ranging species complex with representatives from the southwestern United States through the highlands of central and ...
A hybrid rattlesnake is described from the Peloncillo Mountains of southwestern New Mexico, USA. This specimen possesses features that favor either Crotalus lepidus or C. willardi, but it is easily ...