As with all vipers, Darevsky’s viper possesses a pair of hollow, folding fangs, which are used to inject venom into both prey and predators (2). Venom is stored in glands located behind the eye on either side of the head (2). The characteristic zigzag dorsal body pattern of vipers serves two purposes: to camouflage the snake, and to act as a warning signal to potential predators when the snake is spotted (6) (7).
Darevsky’s viper must acquire body heat from the environment to sustain its daily activities, and it therefore spends some of the day basking in the sun (2). As in other European vipers, this basking behaviour typically occurs in the morning (8), shortly after the viper emerges from its overnight retreat site (2).
Due to the small range and rare nature of Darevsky’s viper, little is known of the feeding behaviour of this species (2). It is suspected to feed on similar prey items to other European vipers of the same size, such as reptiles and amphibians (2), both of which are present in the habitat of Darevsky’s viper (8).