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Giant Desert Hairy Scorpion
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Quick Facts
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Scorpiones
Family: Iuridae
Genus: Hadrurus
Species: arizonensis

Length: 6 inches
Offspring: 25 - 35
Life Span: 25 years

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Giant Desert Hairy Scorpion

Hadrurus arizonensis


The Giant Desert Hairy Scorpion is the largest scorpion in North America, reaching lengths of 6 inches. Their bodies are brown, with yellowish pinchers (pedipalps) and legs. Their common name comes from the brown hairs that cover their bodies. These hairs are used to detect ground and air vibrations. They have a long tail (telson) that is tipped with a bulb-like poison glandWhat does gland mean? and stinger as well as large pinchers (chelae) and four pairs of legs. Although a common pet species, these scorpions are considered aggressive and will sting frequently. Although the sting is painful, their venom is considered mild and has little effect on most humans. As with all stings, medical attention should be sought if the victim shows signs of allergic reactions, such as breathing difficulty, excessive swelling or prolonged pain.Commonly thought to be insects, scorpions are actually in the same family as spiders, ticks and mites. Like all scorpions, they fluoresce a greenish blue under black (UV) lights.


Mostly small desert insects and other invertebratesWhat does invertebrates mean? (lacking a backbone.) They will occasionally feed on small vertebrates (having a backbone,) such as baby lizards. Captive scorpions usually subsist on small insects such as crickets.


These scorpions live in desert regions of California and Arizona (the name arizonensis loosely translates to ‘belonging to Arizona,’) and extreme southern Utah and Nevada. They are able to withstand extremely hot regions because they are nocturnal (active at night.) Rocks are frequently utilized as retreats from the heat of the day.


Birds, bats, small mammals, large spiders, centipedes and lizards preyWhat does prey mean? upon scorpions.


Scorpions are nocturnal (active at night) and lie in wait to ambush their preyWhat does prey mean?. When a suitable victim wanders by, the scorpion grabs the doomed creature with its pinchers and stings the prey. After the prey is immobilized, the scorpion tears the carcass apart with its pinchers and begins feeding.


Scorpions engage in an elaborate dance where the male grasps the female’s pinchers and moves around attempting to find a suitable location to deposit his sperm sack. Once the sperm is deposited, the male will maneuver the female over the spot, where she will receive the sperm. After mating, the male will attempt a quick retreat, but is often caught and consumed by the larger female. As with all scorpions, the Giant Desert Hairy Scorpion bears it’s young live. The infant scorpions live on the mothers back for around a week before going out on their own.


All scorpions have poor eyesight, good hearing and a good sense of touch. Body hairs are used to detect air and ground vibrations.

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