Parasites of the Paleozoic

Parasitism — an ecological relationship in which one species benefits at the expense of its host — is common among living organisms, but as most parasites are soft-bodied, it’s rare to find them preserved in the fossil record. Two recent discoveries, however, have lengthened the short list of ancient parasites

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Terri Cook

Terri Cook

Based in Boulder, Colo., and trained as a geologist, Cook is a freelance writer whose career has focused on exploring and explaining the history of our amazing planet, including as a roving correspondent for EARTH. Follow her travels at www.down2earthscience.com. Follow her @GeoTravelTerri.

Thursday, March 3, 2016 - 06:00