Butterflies containing not one, but two parasitic wasps, surviving after release on Finnish island

[news]

Evolutionary biologist Anne Duplouy is surprised to see butterflies, containing wasps, continue to survive after an experiment moved them to a tiny Baltic Sea island. She has been*tracking the orange and brown Glanville fritillary and its two stowaways,*parasitic wasps, that*emerge from the butterfly like Russian dolls.


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