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Mojave Rattlesnake — printable fact sheet
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Mojave Rattlesnake
Crotalus scutulatus
Crotalus scutulatus is the rattlesnake with a Jekyll-and-Hyde venom map. Across most of its range in the Mojave and Sonoran deserts and into Texas, it produces Mojave toxin, a presynaptic neurotoxin that blocks acetylcholine release and can cause respiratory paralysis hours afte…
Did you know?
- The Mojave Rattlesnake's venom is considered one of the most potent of any North American snake, capable of causing severe neurological symptoms in humans.
- Mojave toxin is chemically almost identical to the venom of some South American rattlesnakes and to certain Old World kraits, an example of the same toxin scaffold being recruited repeatedly across the snakes. The rattle is made of interlocking keratin segments and gains a new one at each shed, but segments break off constantly, so counting them tells you nothing reliable about a snake's age. Newborn Mojave rattlesnakes have a single button and cannot rattle, and their venom is fully potent from birth.
What I learned
Draw the mojave rattlesnake
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