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1 .This is Scientific American 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 .Pack rat.
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3 .The name is synonymous with hoarding.
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4 .And researchers have learned that pack rats can actually increase the range of foods they're able to eat because of their collection of gut bacteria.
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5 .Pack rats live in the American Southwest, where they nosh on the native vegetation.
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6 .Some of these plants produce protective toxins, for example the junipers in the Great Basin desert or the creosote bushes of the Mojave.
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7 .But pack rats seem to eat these noxious shrubs with impunity.
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8 .The researchers found that pack rats from the Mojave harbor gut bacteria that can break down creosote.
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9 .When antibiotics depleted the pack rats' gut bacteria, the animals suddenly found creosote nearly indigestible.
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10 .Further, the researchers found that they could take pack rats from the Great Basin,the ones that eat juniper and give them the ability to eat creosote.
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11 .All they needed was a fecal transplant, which supplied the necessary gut bacteria from their Mojave-based neighbors.
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12 .The work appears in the journal Ecology Letters.
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13 .The findings show the importance of gut bacteria for eating some otherwise dicey foods.
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14 .They could also allow farmers to expand the diet of their livestock.
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15 .Cows with the right gut bacteria could feast on what was formerly feh.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.
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