Mojave Fringe-Toed Lizard

uma scoparia

The Mojave Fringe-Toed Lizard, scientific name Uma scoparia, is a fascinating reptile perfectly adapted to the harsh, sandy environments of the Mojave Desert. Renowned for its unique 'fringe' toes, this agile lizard navigates loose sand with remarkable ease, often appearing to skim across the surface. Its cryptic coloration and specialized adaptations make it a master of camouflage and survival in extreme heat. This species is an excellent example of evolutionary specialization, showcasing how life can thrive in seemingly inhospitable landscapes by developing intricate physiological and behavioral traits.

Habitat: The Mojave Fringe-Toed Lizard primarily inhabits arid regions characterized by fine, loose sand dunes and washes with scattered vegetation such as creosote bush and bursage.

Appearance

This medium-sized lizard typically measures 10-14 cm (4-5.5 inches) from snout to vent, with a tail often longer than its body. Its coloration varies from light tan to pale grey, intricately patterned with dark spots, streaks, and ocelli (eye-like spots) that provide excellent camouflage against sandy substrates. A distinctive feature is the series of elongated, pointed scales along the sides of its toes, forming a 'fringe.' It also possesses specialized nasal flaps and an 'overshot' lower jaw that help keep sand out of its mouth and nostrils.

KingdomAnimaliaPhylumChordataClassReptiliaOrderSquamataFamilyPhrynosomatidaeGenusUma

Mojave Fringe-Toed Lizard

Interesting facts

The specialized 'fringe' on their toes acts like snowshoes, allowing them to run across loose sand at speeds up to 25 km/h (15 mph).

Their cryptic coloration and ability to flatten their bodies against the sand make them incredibly difficult to spot, even when they are present.

They can close their ear openings and nostrils to prevent sand from entering, an essential adaptation for their sandy environment.

When startled, they often sprint a short distance and then abruptly bury themselves in the sand, disappearing from sight almost instantly.

Special abilities

These lizards possess specialized elongated scales on their toes, forming a 'fringe' that increases the surface area of their feet. This adaptation allows them to run swiftly and efficiently over loose sand without sinking.

When threatened or seeking to regulate body temperature, the Mojave Fringe-Toed Lizard can rapidly bury itself completely into loose sand. It uses its shovel-like snout and specialized body movements to 'swim' into the substrate within seconds.

Unique flaps within their nostrils can close completely, preventing sand from entering their respiratory system. This is crucial for survival in their windy, sandy desert environment.

Measurements & details

Length: 10-15 cm
Weight: 0.02-0.05 kg
Lifespan: 2-5 years
Top Speed: 25 km/h
Clutch Size: 2-8
Incubation: 45-60 days

Diet & Feeding

The Mojave Fringe-Toed Lizard is primarily an insectivore, feeding on a variety of small invertebrates found within its desert habitat. Its diet consists of insects and other arthropods that it actively hunts.

Primary Foods

Ants
Beetles
Crickets
Moth larvae
Spiders

Foraging Method

Ambush

Ecological connections

eaten by

Roadrunner

Geococcyx californianus

Primary prey item for many desert predators.

hunts

Desert Ants

Pogonomyrmex rugosus

Main food source, especially for young lizards.

eaten by

Sidewinder Rattlesnake

Crotalus cerastes

Prey for larger snakes common in their habitat.

competitor

Desert Iguana

Dipsosaurus dorsalis

Occupies similar ecological niche and can compete for food resources.

Traits

No trait badges are assigned for this object yet.

Also known as

No aliases listed yet.

Collections

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Safety

Danger

1/5 · Very low

No special safety notes yet.

Frequently Asked Questions

How to identify Mojave Fringe-Toed Lizard?

The easiest way to identify Mojave Fringe-Toed Lizard is to use the Snappit nature identifier app.

How long is Mojave Fringe-Toed Lizard?

10-15 cm

How much does Mojave Fringe-Toed Lizard weigh?

0.02-0.05 kg

How long does Mojave Fringe-Toed Lizard live?

2-5 years

How fast can Mojave Fringe-Toed Lizard move?

25 km/h

What does Mojave Fringe-Toed Lizard eat?

Where is Mojave Fringe-Toed Lizard usually found?

The Mojave Fringe-Toed Lizard primarily inhabits arid regions characterized by fine, loose sand dunes and washes with scattered vegetation such as creosote bush and bursage.

How does Mojave Fringe-Toed Lizard hunt?

Ambush