Crocodile monitor

Common Name: Crocodile monitor 

Scientific Name: Varanus salvadorii

This species is the largest lizard in New Guinea.

Crocodile monitors have long, whip-like tails which are generally well over twice as long as their head and body.

Crocodile monitors are very good climbers and spend lots of time in the trees.

Fast Facts

  • Status

    Least Concern

  • Size

    2.5m in length

  • Weight


  • Gestation

    20 days

  • Young

    Females produce clutches of 4-12 eggs

  • Life span

    Up to 20 years

In the wild

Crocodile monitors prey on birds and mammals, and are also thought to eat eggs.

Crocodile monitors are found on the island of New Guinea, in Papua and Papua New Guinea. They live in a range of habitats including tropical rainforests and have often been seen in forests near rivers.

Male crocodile monitors fight in a ritualised way to attract females. These fights involve head weaving and wrestling. The larger a male is, the more likely he is to win.  Females bury their eggs, digging holes and then filling them in so that the nests are barely visible.

Crocodile monitors have no known predators.

This species is not currently affected by any major threats, although it could face threats locally from habitat loss.

Meet Marwell's Crocodile monitor

Meet Marwell's Crocodile monitor

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