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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata .Got a minute?
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2 .We humans take medicine when we're sick.
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3 .As do our primate cousins.
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4 .Chimps, for example, snack on a bitter African shrub to combat intestinal worms.
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5 .But the habit extends even to invertebrates.
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6 .Take fruit flies, which sip alcohol to ward off parasitic wasps.
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7 .Or wood ants, which line their nests with anti-fungal, anti-bacterial tree sap.
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8 .Now researchers in Finland report that ants there that have encountered a pathogenic fungus appear to fight the infection by eating foods high in free radicals.
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9 .Those are molecules with a talent for causing cell damage, in this case, to the cells of the fungus.
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10 .That's according to a study in the journal Evolution.
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11 .The researchers collected some 400 wild ants.
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12 .They exposed some to the fungus, and left the rest alone.
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13 .Then they offered up a sort of eggy custard, either plain, or laced with free radicals in the form of hydrogen peroxide.
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14 .Uninfected ants didn't want anything to do with the radical-rich food.
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15 .Which makes sense.
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16 ."Exactly, I mean we don't take painkillers on a daily basis, or we don't take anti-microbial agents on a daily basis.
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17 .Because that would have really severe side effects on the organism."
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18 .Dalial Freitak, an insect immunologist at the University of Helsinki.
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19 .Sick ants, on the other hand, preferred the peroxide diet¡ªeven before developing a full-blown infection.
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20 .And the medicine upped their odds of survival some 30 percent.
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21 ."I would definitely go for it!"
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22 .As for free radicals in the wild?
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23 .Dalial says ants might get them from the honeydew substance that aphids produce.
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24 .Or decomposing corpses, another ant favorite.
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25 .No word on whether they sometimes seek out antioxidants.
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26 .Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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