Agkistrodon – Pit vipers

Also known as American moccasins; endemic to North America

Pit vipers of this genus go by the names cottonmouth, cantil, and copperhead. They have heat-sensory pits between their eyes and nostrils on either side of their heads, just like other pit vipers, which can pick up on even the slightest temperature variations.

These allow the snakes to precisely hit the source of heat, which is frequently potential food.
These snakes can be found in various environments, including rocky, forested hillsides, marshes, and semiaquatic and terrestrial habitats. Additionally, they have been observed living in construction zones, rotting wood or sawdust heaps, and occasionally suburban neighborhoods. Species within a genus have varying degrees of conservation status.