Ackies dwarf monitor

At the Cincinnati Zoo in Dragons!

Also called the spiny-tailed monitor or ridge-tailed monitor, Ackies dwarf monitor (Varanus acanthurus) has a long tail that is ringed with spines or ridges. Wedging its tail into a rock crevice, the spines help to hold the monitor in place and make it difficult for a predator to pull the lizard out.


  • Where to see them: Northern Australia
  • Length: Up to 2 ft
  • Weight: Up to 12 oz
  • Lifespan: More than 10 yrs
  • Habitat: Rocky outcrops
  • Diet: Insects and small reptiles
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