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Gallery: The Amazing Scorpion-Resistant Mouse

Predator Mouse

A grasshopper mouse and scorpion

(Image credit: Ashlee and Matthew Rowe)

A southern grasshopper mouse ( Onychomys torridus) approaches and sniffs the Arizona bark scorpion ( Centruroides sculpturatus) that it has just killed.

Eating a Scorpion

A mouse eats a scorpion

(Image credit: Ashlee and Matthew Rowe)

A southern grasshopper mouse eats the Arizona bark scorpions that it has just killed.

Scorpion Snack

Grasshopper mouse venom

(Image credit: Ashlee and Matthew Rowe)

Grasshopper mice feel no pain from the venom of an Arizona bark scorpion.

Preparing to Attack

Scorpion versus mouse

(Image credit: Ashlee and Matthew Rowe)

A face-off between a bark scorpion and a grasshopper mouse. The mouse has evolved so that the scorpion's venom blocks pain signals to the brain, preventing stings from hurting.

Mouse Attack

Scorpion versus mouse

(Image credit: Ashlee and Matthew Rowe)

An Arizona bark scorpion prepares to fight as a grasshopper mouse approaches.

A Desert Duel

Scorpion versus mouse

(Image credit: Jillian Cowles)

A Mearn's grasshopper mouse attacks a striped bark scorpion. Both species are close relatives of the souther grasshopper mouse and Arizona bark scorpion.

Successful Attack

A mouse eats a scorpion

(Image credit: Jillian Cowles)

A Mearn's grasshopper mouse eats a striped bark scorpion after a successful attack.

Scorpion Treat

Grasshopper mouse and scorpion

(Image credit: Jillian Cowles)

A grasshopper mouse with its prey, the striped bark scorpion.