taylor's cantil snake agkistrodon bilineatus taylori

agkistrodon ambush america animal attack bilineatus bite black cantil coil dangerous deadly desert durissus fangs hunt lethal mountain nature pacific pattern pit pitviper poison poisonous predator rattle rattler rattlesnake reptile scales scaly serpent slithering snake southern stalk strike taylor taylori uracoan vegrandis venom venomous viper viridis wild wildlife yellow