Malayan Water Monitor

About the Malayan Water Monitor in Singapore

Last updated on 15 September 2026

Commonly sighted around Singapore, the Malayan Water Monitor (Varanus salvator) is a versatile lizard found in a wide variety of habitats, and is the most common of the three monitor lizard species found in Singapore. It is considered to be one of the largest lizard species in the world, only smaller than the Komodo Dragon.

Identifying features

Check out some of the identifying features of the Malayan Water Monitor below.

Malayan Water Monitors are impressive reptiles that can grow quite large, reaching lengths of 1.5 to 2 metres. Their bodies are mostly dark brown or black, marked with lighter bands across the tail and sprinkled with small light spots along their skin.

Habitat and ecology

Favouring semi-aquatic habitats, Malayan Water Monitors can be found in almost any suitable habitat surrounding water bodies, ranging from parks and gardens to mangroves.

Juveniles are more arboreal than adults, and can be found sleeping in trees to avoid predation. Although carnivorous, they eat a wide range of prey such as fish, snakes, birds, frogs, rodents, turtles, as well as young crocodiles and crocodile eggs.

Frequently asked questions

Q: What is the difference between the Malayan Water Monitor and the Clouded Monitor?

Although visually similar at first glance, the Clouded Monitor and Malayan Water Monitor have a few noticeable differences. The Clouded Monitor has its nostrils midway between the eyes and snout, while the Malayan Water Monitor's nostrils are near the snout’s tip. The Clouded Monitor also tends to have shorter heads and more rounded tails. In terms of habitat, the Malayan Water Monitor is almost always found near water bodies such as ponds, lakes and canals, while the Clouded Monitor is found much more commonly in terrestrial habitats such as forests.