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A black swallowtail butterfly feeds on a pink cosmos flower

A black swallowtail butterfly feeds on a pink cosmos flower. Like most pollinators, the proboscis is a tube which functions like a straw as the butterfly sucks nectar from the flower. Learn more about the pollinator garden maintained by the ARS Bee Research Lab in Beltsville, Maryland.

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Photo by Peggy Greb, USDA/ARS
Copyright free, public domain image

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