The Asian water monitor (Varanus salvator) is one of the most common monitor lizards in Asia, native to South and Southeast Asia, and found throughout Sri Lanka inhabiting wet, dry, and intermediate zones, in both rural and urban areas. This species is among the largest lizards in the world, characterised by its muscular body and laterally compressed tail. The Asian water monitor typically has a dark black-brown colouration adorned with yellow spots, which fade with age. 

These lizards utilise their powerful jaws, equipped with serrated teeth, and sharp claws to consume a wide variety of prey, including fish, frogs, rodents, birds, crabs, and snakes. They have also been observed feeding on juvenile turtles, crocodiles, and crocodile eggs.