copperhead or highland moccasin snake agkistrodon contortrix

adult agkistrodon america american animal background big bite camouflage chunk closeup color contortrix copperhead crotalinae danger dangerous endangered endemic exotic eye fauna head herpetophobia highland large moccasin mottled muzzle nature northern oak ophidiophobia pattern pit poison poisonous portrait predator reproduction reptile reptilian scale serpent serpentine snake southern states tropical ugly united viper white wild wildlife yellow zoo