Cotton-mouth moccasins.

These animals are not something you would want to come across at any time, they are a venomous, long and thick snake, with a triangular head to see all threats.

-The average length of these reptiles can reach up to 40 inches long but one has been believed to have grown up to 2-1/2 meters long. 

-Cotton mouths are mostly active at night and sleep in the day, you could say they were nocturnal.

- The diet of these snakes is cold and warm blooded animals including other snakes

- The life span of these animals is unknown