Parasites discovered in fossil fly pupae

Parasitic wasps existed as early as several million years ago. Within a project coordinated by Karlsruhe Institute of Technology (KIT), researchers of various disciplines have, for the first time, definitively discovered fossil parasites inside their hosts. The scientists studied fly pupae from old collections using ultrafast X-ray imaging. They found 55 cases of parasitation and described four extinct wasp species that were unknown until now. Their findings are reported in Nature Communications.

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