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Komodo Dragon

The Komodo dragon (*Varanus komodoensis*) is the largest living lizard species.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Komodo dragon (*Varanus komodoensis*) is the largest living lizard species. It is a monitor lizard native to a small group of Indonesian islands, where it is an apex predator and scavenger. Komodo dragons are considered dangerous because of their large size, powerful bite, and predatory behavior.

Description

Komodo dragons are large monitor lizards with long tails, sturdy limbs, and powerful jaws. They are the largest living lizards and can grow to about 3 metres in length. Wild individuals can reach around 3.1 metres in length and weigh up to about 166 kilograms.

Distribution and habitat

The species is native to a limited range in Indonesia, including Komodo, Rinca, Flores, Gili Motang, and Gili Dasami. They live in habitats such as tropical forest, grassland, savanna, and scrubland.

Diet and behaviour

Komodo dragons are carnivores that feed on carrion and live prey. They ambush animals and can eat a wide range of vertebrates, from smaller animals to large mammals. Adults eat carrion and also hunt animals such as deer, pigs, birds, and smaller reptiles.

Conservation

Komodo dragons are listed as endangered by the IUCN. Their restricted island range and small wild population make them vulnerable to habitat change and other threats.

Key facts

  • The Komodo dragon is the largest extant lizard species.
  • It lives only on a few Indonesian islands in the Lesser Sunda Islands.
  • Adults eat carrion and also hunt animals such as deer, pigs, birds, and smaller reptiles.
  • Komodo dragons are considered dangerous because of their large size, powerful bite, and predatory behavior.
  • Wild individuals can reach around 3 metres in length and well over 100 kg in weight.
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Canadian context

Komodo dragons are not native to Canada, but they are relevant to Canadian readers through zoo collections, wildlife education, and conservation coverage.

Frequently asked questions

What is a Komodo dragon?
A Komodo dragon is a large monitor lizard and the largest living lizard species.
How big do Komodo dragons get?
They can reach about 3.1 metres long and weigh up to about 166 kilograms.
Are Komodo dragons dangerous?
Yes. They are powerful predators with a strong bite, and they can seriously injure or kill prey and, rarely, people.
Where do Komodo dragons live?
They live on a few Indonesian islands, including Komodo, Rinca, Flores, Gili Motang, and Gili Dasami.
What do Komodo dragons eat?
They eat meat, including carrion, deer, pigs, birds, reptiles, and other small to medium animals.
How long do Komodo dragons live?
They can live up to about 30 years in the wild.

References

  1. Britannicahttps://www.britannica.com/animal/Komodo-dragon
    Supports: Largest extant lizard species; taxonomy; Indonesian island distribution; size and weight
  2. National Geographic Kidshttps://kids.nationalgeographic.com/animals/reptiles/facts/komodo-dragon
    Supports: Diet, lifespan, size, weight, and restricted Indonesian range
  3. Smithsonian's National Zoohttps://nationalzoo.si.edu/animals/komodo-dragon
    Supports: Largest living lizard; size; verified specimen measurements; diet and habitat
  4. BBC Newsroundhttps://www.bbc.co.uk/newsround/58572739
    Supports: Danger to humans; endangered status; island range; approximate size and weight
  5. World Wildlife Fundhttps://www.worldwildlife.org/blogs/good-nature-travel/posts/ten-fierce-facts-about-komodo-dragons
    Supports: Conservation status and approximate wild population estimate
  6. Denver Zoohttps://www.denverzoo.org/animals/komodo-dragon/
    Supports: Habitat types, island distribution, and long lifespan