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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .Rodents called grasshopper mice have an unusual favorite food.
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3 .Not grasshoppers. No, they really like scorpions.
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4 .You can see the problem.
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5 .But the mice shrug off any scorpion stings.
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6 .And a new study shows how.
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7 .Researchers injected common house mice with scorpion venom.
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8 .The mice nursed the injection site for several minutes.
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9 .But grasshopper mice injected with venom fussed for only a few seconds.
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10 .In fact, they were more bothered by saline solution.
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11 .So what's going on?
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12 .In the house mouse, a specific type of nerve-cell signaling-channel got activated by the venom.
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13 .But this same channel in grasshopper mice stayed inactive in the presence of venom, meaning the mice remained blissfully ignorant.
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14 .In addition, a separate pathway did react to the scorpion venom,
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15 .and it actually temporarily blocked pain signals.
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16 .Meaning that for grasshopper mice, scorpion venom is actually an analgesic.
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17 .The work is in the journal Science.
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18 .Understanding details of this system could lead to new approaches in the treatment of pain in people,
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19 .so that someday we might ask, "Scorpion, where is thy sting?"
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20 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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