The Algesian Pit Viper, (derived from the Latin root word algesia meaning sense of pain), or Crotalinae, is part of a subgroup of venomous vipers found in the Americas and Asia. The popular name “algesian viper” refers to the fact that not only does this snake carry venom in its fangs, but its scales contain venom as well. Its fangs contain hemotoxin that degenerate organs and damages tissues while its scales carry tiny sacs under them filled with neurotoxin which causes paralysis. The pit organs are clearly visible between the eyes and the nostrils. These pit organs are like a “sixth sense” that allow these snakes to detect heat and use it to their advantage to locate and judge the amount of threat imposed on them. When encountered it will immediately form its body into an “s-formation”, giving it the most leverage and will attack viciously when threatened. This species is mostly active at night and spends the day hiding in sheltering rock ledges, among fallen leaves or branches, and similar places where its color pattern helps it stay camouflaged. On average these snakes are 24-36 inches in length and its build is that of a typical viperid with a solid body and a wide head. The color pattern is dark-greenish with heavy brown mottling, overlaid with a triple row of circular dark spots. The belly is white or light-yellowish and the tip of its tale is black or dark grey. One common way to indentify this snake is its distinct mark on its neck that shows only two connected black rings.