Great video by tracker Eric of a vine snake chasing and biting a frog during safari drive on the 12th of December 2015. Unfortunately his camera ran out of memory and he could not continue to film until the inevitable sad (for the frog) ending of the frog being swallowed by the snake. A safari is about the bush as a whole and not just the search for the larger more glamorous animals and to see a story like this unfold before your eyes is an fascinating experience.
The eyes of vine snakes have horizontal pupils, shaped like keyholes, which give vine snakes their binocular vision. Vine snakes are among the few rear-fanged snakes whose bite is highly venomous. The venom is hemotoxic, and although its effects are very slow, and bites are rare, no antivenom has been developed and several fatalities have occurred.