An Eastern diamond back rattlesnake coils itself to strike during the Opp Rattlesnake Rodeo. Reptile researchers say populations of the snake species are declining to dangerously low levels. (Associated Press)

An Eastern diamond back rattlesnake coils itself to strike during the Opp Rattlesnake Rodeo. Reptile researchers say populations of the snake species are declining to dangerously low levels. (Associated Press)