menacing black viper snake with open mouth and bifurcated tongue poised to strike with deadly venom and fangs predatory reptile

snake viper reptile predator danger wildlife serpent fangs scales nature animal hiss slither venomous coil reptilian black menacing fierce bifurcated tongue open mouth attack strike deadly fear creepy spooky ominous sinister aggressive snarl fang predatory hunter poisonous constrictor python cobra anaconda adder copperhead timber rattlesnake coral mamba kraits banded krait diamondback bushmaster gaboon