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July 27, 2026Short & citedBlog
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Field Notes • Reptile

Komodo Dragon

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

Updated July 27, 20261 min readCited sources

The Komodo dragon is the largest living lizard species, a powerful monitor lizard native to a handful of Indonesian islands.

What it is

The Komodo dragon (*Varanus komodoensis*) is a monitor lizard in the family Varanidae. It is the largest extant lizard, reaching up to about 3.1 metres in length and 166 kilograms in weight. Adults are carnivores that eat carrion and hunt animals like deer, pigs, birds, and smaller reptiles.

Where it lives

This species is native only to a small group of Indonesian islands: Komodo, Rinca, Flores, Gili Motang, and Gili Dasami. It inhabits tropical forest, grassland, savanna, and scrubland. Its restricted range makes it vulnerable to habitat change.

Why it matters

Komodo dragons are apex predators and scavengers in their ecosystem. They are listed as endangered by the IUCN due to their small wild population and limited range. For Canadian readers, they appear in zoo collections and wildlife education, offering a window into conservation of island species.

In short

  • Largest living lizard species, up to 3.1 m and 166 kg.
  • Native only to a few Indonesian islands.
  • Carnivorous diet includes carrion and live prey.
  • Listed as endangered; vulnerable to habitat loss.
Canadian angle

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

Quick questions

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.

Sources

  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