Mexican small-headed rattlesnakes, scientifically known as Crotalus intermedius, are a “poorly known” species of venomous snake native to Mexico, researchers said. They are most active during ...

Additionally, they are found in Mexico, particularly along the Pacific coast. Timber Rattlesnake. Crotalus horridus is a venomous pit viper native to the Eastern United States. Image via Depositphotos ...

Eastern diamondback rattlesnake. Image by spineback via Depositphotos. The Timber Rattlesnake (Crotalus horridus) prefers more wooded environments compared to its desert-loving counterparts. This ...