The green keelback snake, scientifically known as Rhabdophis tigrinus, is a non-venomous species belonging to the family Colubridae. Found primarily in Southeast Asia, this snake inhabits a range of environments, including wetlands, rice paddies, and forested areas, often near water sources. Characterized by its vibrant green coloration, which aids in camouflage among vegetation, the green keelback has a distinctive keel-like ridge running along each scale, contributing to its name.

Adult green keelbacks typically grow to a length of 1 to 1.5 meters, with some individuals reaching up to 2 meters. Their diet mainly consists of amphibians, particularly frogs, which they skillfully hunt. One fascinating aspect of their biology is their ability to sequester toxins from their prey, making them distasteful to potential predators. Green keelbacks are generally diurnal, actively foraging during the day. They exhibit a range of behaviors, from swimming to climbing, showcasing their adaptability to diverse habitats. While not considered dangerous to humans, they can deliver a mild bite if provoked. Conservation efforts are essential to protect their habitats, as wetland destruction poses a significant threat to their populations.