Spiders Identified By DNA Extracted From Their Web

Scientists have successfully managed to extract DNA from spider webs, which not only identified a web's architect, but also what insects the spinner was feeding on. The proof-of-concept study, published in PLOS ONE, used captive southern black widow spiders to show that their webs contained enough fragments of DNA to potentially provide a reliable, non-invasive biomonitoring technique. Not only could the researchers identify the inhabitants...
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