Komodo Dragon Facts

The Komodo Dragon (Varanus komodoensis) is the largest lizard on the face of the Earth today. An ancient species of reptiles, it first appeared on the planet more than 100 million years ago, although it was known to Western science only in 1912. Until now, it was known in the West only for rumors of dragon-like lizards in the Lesser Sunda Islands of the Pacific Ocean.

Quick Facts: Komodo Dragon

Scientific name: Varanus komodoensis
Common names: Komodo dragon, Komodo monitor
The main group of animals: Reptile
Size: 6 to 10 feet
Weight: 150-360 pounds
Life expectancy: Up to 30 years
Diet: Predator
Location: Specific Indonesian islands
Saving Status: Vulnerable

Komodo Dragon Lizard Weight, Length

Full-grown Komodo dragons typically grow up to 10 feet and can weigh 150 pounds, although individual specimens can weigh up to 350 pounds. They are dull brown, dark gray, or reddish, while minors are green with yellow and black stripes.

Komodo dragons are massive and powerful in appearance with bowed legs and muscular tails. Their heads are long and flat, and their muzzles are rounded. Their scaly skin is usually combined with sand color and gray, providing good camouflage. In motion, they roll back and forth; at the same time, their yellow tongues push out of their mouths.

Giant Komodo Dragon Habitat

Komodo dragon reptiles have the smallest habitat of all large predators: they live on certain small Indonesian islands of the Small Probes group, including Rintu, Padar, Gili Motang and Flores, and Komodo, in habitats from beaches to forests to mountain tops.

Komodo Dragon Venomous – Diet

Komodo dragons will eat almost any meat, including live animals and carrion. Smaller, younger dragons eat small lizards, snakes, and birds, while adults prefer monkeys, goats, and deer. They are also cannibalistic.

These lizards are the tops of the predators of their Indonesian island ecosystems; from time to time they seize live prey, hiding among the vegetation and ambushing their victims, although, as a rule, they prefer to eat already dead animals. (In fact, the gigantic size of the Komodo dragon can be explained by its island ecosystem: like the long-extinct Dodo bird, this lizard has no natural predators.)

Komodo dragons have good eyesight and adequate hearing, but mostly rely on their keen sense of smell to detect potential prey; these lizards are also equipped with long, yellow, deeply forked tongues and sharp teeth, and their rounded muzzles, strong limbs, and muscular tails are also useful when aiming for dinner (not to mention communicating with other genera: When Komodo dragons collide between in the wild, is dominated by the dominant individual, usually the largest male.) Hungry Komodo dragons are known to run at speeds of up to 10 miles per hour, at least for short distances, making them some of the fastest lizards on the planet.

Reproduction and Offspring – Dangerous Komodo Dragon

The Komodo dragon’s mating season covers July and August. In September, females dig egg chambers, which lay up to 30 eggs. The mother-to-be covers the eggs with leaves and then lies over the nest to warm the eggs until they hatch, which requires an unusually long period of seven to eight months.

Newborn chicks are vulnerable to predation by birds, mammals, and even adult Komodo dragons; for this reason, young people rush to the trees, where the tree-like way of life provides them with shelter from natural enemies until they become large enough to defend themselves.

Komodo Dragon – National Animal

Komodo dragons are listed as Vulnerable. According to the San Diego Zoo website:

“One study estimated the number of Komodo dragons within Komodo National Park at 2,405. Another study estimated between 3,000 and 3,100 individuals. On the much larger island of Flores outside the National Park, the number of dragons is estimated at 300 to 500 animals.”
While the population is more or less stable, Komodo’s habitat continues to decline due to increasing human encroachment.

Komodo Dragon Poison

There has been controversy over the presence or absence of venom in the Komodo dragon’s saliva. In 2005, researchers in Australia suggested that Komodo dragons (and other observer lizards) had mildly venomous bites that could cause swelling, shooting pain, and blood clotting disorders, at least in human casualties; however, this theory has not yet been generally accepted. It is also possible that the saliva of Komodo dragons transmits harmful bacteria that multiply on rotting pieces of meat wedged between the teeth of this reptile. However, this would not make the Komodo dragon anything special; There has been speculation for decades about the “septic bites” caused by carnivorous dinosaurs!


  • Komodo Dragon. National Geographic, September 24, 2018,;
  • “Komodo Dragon”. San Diego Zoo, animals and plants,;
  • “Komodo Dragon”. Smithsonian National Zoo, July 9, 2018,
Alice White

Written by Alice White

Alice White, a devoted pet lover and writer, has turned her boundless affection for animals into a fulfilling career. Originally dreaming of wildlife, her limited scientific background led her to specialize in animal literature. Now she happily spends her days researching and writing about various creatures, living her dream.

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