Reptiles
Brown Basilisk
Basiliscus vittatus · also called striped basilisk
Startled from a streamside perch, a brown basilisk drops onto the water’s surface and sprints across it upright on its hind legs, fringed toes slapping down fast enough to outrun sinking before momentum finally gives out and it dives beneath the surface to finish the escape.
Overview
The brown basilisk, Basiliscus vittatus, is a striped lizard native to forest and wetland habitat across Mexico and Central America, with introduced populations established in parts of Florida. Its remarkable ability to sprint across open water on specially fringed hind feet makes it one of the most physically impressive escape artists among reptiles.
A two-stage escape most predators can’t follow
Few animals can switch as seamlessly between running and swimming as the brown basilisk, whose water-surface sprint buys just enough time before a clean dive finishes an escape that leaves most land-bound predators stranded at the water’s edge.
Status
Least Concern — widespread and common across suitable forest and wetland habitat throughout Mexico and Central America, with established introduced populations in Florida.
Brown Basilisk: common questions
How does the brown basilisk run across water?
A brown basilisk can run across the surface of water for short distances by rapidly slapping specialised fringed toes on its hind feet down against the surface, a motion fast enough to create a temporary air pocket that keeps the lizard from sinking before its momentum eventually runs out.
What happens if a brown basilisk can't outrun a threat on water?
A brown basilisk is also a capable swimmer, so once its water-running sprint slows down, it can simply dive underwater and swim to escape a pursuing threat, giving it a genuine two-stage escape strategy across the same water it just ran over.
How is the brown basilisk different from the green basilisk?
The brown basilisk displays a pattern of pale stripes along an otherwise brown or olive body, distinct from the more vividly green colouration and larger head crest typical of the green basilisk, though both species share the same remarkable water-running ability.
Where does the brown basilisk live?
The brown basilisk is native to forest and wetland habitat across Mexico and Central America, and introduced populations have also become established in parts of Florida.