The Basilisk Lizard

The Basilisk Lizard


The Basilisk lizard can run across water.


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The common basilisk is a species of lizard in the family Corytophanidae. The species is endemic to Central America and South America, where it is found near rivers and streams in rainforests. It is also known as the Jesus Christ lizard, Jesus lizard, South American Jesus lizard, or Lagarto de Jesus Cristo for its ability to run on the surface of the water.

The common basilisk, along with the other members of its genus, takes the nickname the "Jesus Christ lizard" or "Jesus lizard" because when fleeing from predators, they gather sufficient momentum to run across the water for a brief distance while holding most of their body out of the water (similar to the biblical story of Jesus walking on water). Basilisks have large hind feet with scaly fringes on the sides of the third, fourth, and fifth toes. These are compressed against the toes when this lizard walks on land; but if it senses danger, it can jump into the water, opening up these fringes against the water's surface.

This increases the surface area of the foot, thus allowing it to run on the water for short distances. This occurs in three steps. First is the slap, the downward movement of the foot that pushes the water out and away from the leg. This also created pockets of air around the foot. Next is the stroke, the backward movement of the foot, which propels it forward. Next is the recovery, when the foot comes up and out of the water and prepares to do the slap again. Smaller basilisks can run about 10–20 m without sinking. Juveniles can usually run farther than older basilisks while holding more of their body above the water.


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