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This is Scientific American's 60-Second Science. I'm Karen Hopkin.This'll just take a minute.

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Data are the lifeblood of science.

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But all those carefully recorded observations may be in danger.

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Because a new study shows that data from the recent past are being lost at an alarming rate.

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The journal Current Biology has the data to prove it.

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Scientific studies build on research that came before.

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And scientists turn to the facts and figures from previous work to aid in their own analyses or confirm that the earlier results still hold up.

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But how often can they access the older data they need?

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To find out, researchers selected 500 studies published between 1991 and 2011.

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And they sent the authors a request for the studies' raw data.

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Twenty years after publication, 80 percent of the data was unavailable.

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In some cases, the authors couldn't be reached.

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When they did respond, many reported that the data were simply not accessible, buried in an attic or saved on a now unreadable floppy disk.

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This loss of information is an impediment to ongoing research and a waste of funding.

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Perhaps scientific data should be recognized as an endangered species, and efforts made to keep data around for future generations.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.

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