Spiders may build their webs to catch prey, but trials in Slovenian forests show they also grab onto DNA, which can help us monitor biodiversity in a less invasive manner
Source:
https://www.newscientist.com/article/2249691-spiderwebs-gather-dna-that-can-help-us-monitor-insects-in-forests/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home