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  3. Common Water Monitor

One of the 6 monitors on WAnimals

Common Water Monitor (Varanus salvator)

Reptiles · Squamata · Varanidae

Common Water Monitor

Varanus salvator

Not Evaluated

It has not yet been assessed against the IUCN criteria.

Spotted something wrong?

It is one of the most widely distributed lizards in the world and very tolerant of people, commonly seen in canals and city parks across South-East Asia.

Weight

9 kg – 45 kg

Size

25 cm – 3 m

Life expectancy

12 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Diurnal

Active mainly during the day.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

RainforestFreshwater
20countries72parks44dive sites6same family

AI-generated images: illustrations, not photographs.

Fun facts

  • It is the second heaviest lizard in the world after the Komodo dragon.
  • It is very tolerant of people, and common in canals and city parks.
  • Its skin is widely traded for the fashion industry.
  • comportamientoIt swims and dives well, able to stay under for several minutes, and eats a very varied diet including carrion, eggs and small vertebrates.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat and environment
Mangroves, wetlands, rivers and canals of coastal South and South-East Asia, towns included
Birth weight
0.1 - 0.2 kg; 25-30 cm long at hatching
Size at birth
25 - 30 cm long at hatching
Sexual maturity
2 years (the male mature at ~1 m long, the female at ~0.5 m)
Gestation / incubation
5-6 months (150-180 days)
Litter / clutch size
10 to 40 eggs per clutch
Life expectancy in captivity
Up to 11-25 years documented in captivity

Sources consulted: A-Z Animals · Animal-pedia.org · ReptileGuide · SeaWorld/Busch Gardens · ReptileDirect · Animalia.bio · The Animal Facts · PMC (skeletochronology study)

Where to find it

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Where to see it

Parks and dive sites where this species has been documented — showing 20 of 116.

Related species

Other species in the catalogue with the most in common with Common Water Monitor — same habitat, park, country, tags or family.

Same taxonomic family
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Keep exploring

Based on what we already know about common water monitor.

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See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano

The pins mark the parks and dive sites where its presence is documented.

See its range on the interactive map→
KomodoIndonesia
KazirangaIndia
SundarbansIndia
PeriyarIndia
YalaSri Lanka
Gunung LeuserIndonesia
Way KambasIndonesia
Khao YaiThailand
Phong Nha-Ke BangVietnam
Gunung MuluMalaysia
Raja AmpatIndonesia
Komodo National ParkIndonesia
Bunaken Marine ParkIndonesia
Wakatobi National ParkIndonesia
Alor ArchipelagoIndonesia
SipadanMalaysia
Mabul IslandMalaysia
Perhentian IslandsMalaysia
Similan IslandsThailand
Koh TaoThailand
See all 72 parks
See all 44 dive sites
Komodo DragonEndangered

Komodo Dragon

Varanus komodoensis

Saltwater CrocodileLeast Concern

Saltwater Crocodile

Crocodylus porosus

Hawksbill TurtleCritically Endangered

Hawksbill Turtle

Eretmochelys imbricata

Banded ArcherfishLeast Concern

Banded Archerfish

Toxotes jaculatrix

Irrawaddy DolphinEndangered

Irrawaddy Dolphin

Orcaella brevirostris

Moorish IdolLeast Concern

Moorish Idol

Zanclus cornutus

CountriesIndonesia
ParksKomodoIndonesia
TagsCarnivore
Carnivore
Diurnal
Solitary
Reptile
Rainforest
Freshwater

Asia19

Oceania1

Indonesia
Thailand
Malaysia
India
Vietnam
Philippines
Bangladesh
Bhutan
Brunei
Cambodia
China
India
Indonesia
Laos
Malaysia
Myanmar
Nepal
Pakistan
Philippines
Singapore
Sri Lanka
Taiwan
Thailand
Timor-Leste
Vietnam
Papua New Guinea