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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 .Forty-six million years ago, northwest Montana was a tropical forest of giant ferns, conifers and ginkgos.
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3 .Tiny primates lived there, as did rhinos and horses and crocs.
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4 .Along with some less charismatic creatures: mosquitoes.
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5 .One of those millions of mosquitoes was then blown onto the surface of an ancient lake.
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6 .Unable to lift off, it eventually sank to the bottom.
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7 .And became a fossil.
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8 .The fossil mosquito was recently found and analyzed.
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9 .Scientists found that its belly contained iron, bound up in a molecule called heme, the compound in blood that carries oxygen.
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10 .So it appears this sucker died and fossilized with a bellyful of blood, the only known specimen.
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11 .The findings appear in the Proceedings of the National Academy of Sciences.
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12 .Now I know you're thinking.
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13 ."This fossilized tree sap waited for millions of years, with the mosquito inside.
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14 .Until Jurassic Park scientists came along."
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15 .Well, not quite. DNA breaks down too quickly.
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16 .And this skeeter lived 20 million years after dinos went extinct.
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17 .The researchers say it may have dined on birds--which are, in some sense, blood relatives.
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18 .Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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