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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 .Everybody loves chimps¡ especially their endearing entreaties.
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3 .Scientists, too, love to listen to chimps chat.
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4 .And they enjoy sharing these colorful commentaries with their colleagues.
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5 .Now, anyone with a hankering for primate prattle can listen in.
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6 .Because researchers from the Netherlands have made available online a digitized catalog of more than ten hours' worth of chimpanzee calls.
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7 .The recordings are described in a new journal, published by Nature, called Scientific Data.
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8 .The audio, which includes more than 1000 separate data files, was captured in the early 1970s by the late Hetty van de Rijt-Plooij.
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9 .She recorded the various screams, barks, and hoocalls made by a group of chimps, including 17 youngsters, living in the wild in the Gombe National Park in Tanzania.
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10 .Van de Rijt-Plooij and her husband Frans Plooij were planning to study how chimp vocalizations change over the life of an individual.
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11 .But they ended up focusing on how baby chimps behave, so their extensive recordings have remained largely unexplored.
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12 .One thing that pops out of this collection is that immature chimps grunt more than their adult counterparts.
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13 .Which suggests that you don't want to talk to baby Bonzo before he's had his morning banana smoothie.
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14 .Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.
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