Gunalen's pit viper (Trimeresurus gunaleni). The viper is coiled on a small bush at a knee level awaiting its pray. They feed mainly on Amphibians, snails or eggs. In the dark undergrowth it is virtually inconspicuous. It does not attack people as such but when disturbed or pushed by pedestrian it can strike. All vipers are venomous. Their venom contains hemotoxin that destroys blood vessels and cells, causing extreme pain and swelling in the bite area with permanently damaged tissue. Among many symptoms like headache, nausea or disorientation, there maybe occur kidney failure that can lead to death.