Mexican Beaded Lizard - Five Sisters Zoo

Individuals have black heads and bodies with yellow or white patches. Their legs are dark, and they have yellow bands on their tail. Their body is covered in osteoderms (deposits of bone), which means they are protected by “armour-plated” skin.

Individuals have large jaw muscles, venom glands in the lower jaw, and curved teeth, some with venom-conducting grooves. they have a pink forked tongue.


  • Diet: Carnivore
  • Weight:  1.4 to 2 kilograms
  • Length:  76 centimetres
  • Habitat: Forest, shrub-land and semi-arid rocky regions of central and western Mexico
  • Life span:  22 years under human care

Adapted to Survive

  • They use their venom to deter predators
  • Individuals store fat in their tail, which helps them endure periods when food is scarce


  • Human-animal conflict
  • Climate change

IUCN Conservation Status

Least Concern