There is limited specific information on the biology of the Black Sea viper due to the rarity of this species. However, vipers, in general, are one of the largest and most highly evolved groups of snakes (3). Like the Caucasian viper, the Black Sea viper is camouflaged to help catch its prey, which mostly consists of small mammals (4). Vipers are typically slow moving, however, once their prey is sighted, they can strike rapidly. The fangs of vipers are typically folded back against the roof of the mouth, allowing the jaw to be closed (3) (4), but can be erected by muscles when needed (4). After being bitten, the prey is often released, leaving it to seemingly escape; however, the venom then acts on the prey’s blood or nervous systems, and the snake can then track down and consume the dead or dying animal (4).