Reptiles
Mojave Fringe-Toed Lizard
Uma scoparia · also called Mojave fringe-toed lizards
A Mojave fringe-toed lizard sprints across a wind-rippled dune, its snowshoe-like fringed toes keeping it skating over the surface, before diving headfirst into the loose sand and vanishing entirely from sight.
Overview
The Mojave fringe-toed lizard, Uma scoparia, is a specialised, sand-adapted lizard native to active dune habitat within the Mojave Desert of California. Its snowshoe-like fringed toes, ability to dive beneath the sand surface, and dependence on a narrow, patchy range of specific dune systems make it one of the more remarkably adapted and genuinely vulnerable reptiles of the American desert.
A lizard built entirely around sand
Every notable feature of the Mojave fringe-toed lizard, from its fringed toes to its sand-sealing eyes and nose, exists to solve one single problem: how to live successfully on a surface that shifts, burns, and buries.
Status
Vulnerable — dependent on specific active sand dune systems threatened by off-road vehicle use, sand mining, and development.
Mojave Fringe-Toed Lizard: common questions
How do the Mojave fringe-toed lizard's toes help it move on sand?
This species has distinctive fringed scales along its toes that increase surface area, functioning much like a snowshoe, which keeps the lizard from sinking into loose, shifting sand as it moves quickly across dune habitat that would slow down many other lizards.
Can the Mojave fringe-toed lizard really swim through sand?
Yes, it can dive directly into loose sand and effectively move just beneath the surface, a remarkable escape strategy that lets it disappear from predators almost instantly and also helps it avoid extreme surface temperatures during the hottest parts of the day.
Why is the Mojave fringe-toed lizard considered vulnerable?
This species depends on specific active sand dune systems within the Mojave Desert, and threats such as off-road vehicle use, sand mining, and development can degrade this already naturally patchy and specialised habitat, putting real pressure on its limited range.
How does the Mojave fringe-toed lizard keep sand out of its eyes and nose?
It has valve-like nostrils and reduced ear openings that help block blowing sand, along with a partially translucent lower eyelid that can close over the eye while still allowing some vision, adaptations well suited to life on a windy, shifting dune.