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A fuzzy bumble bee clings to pale purple flowers.
The endangered rusty patched bumble bee ~(Bombus affinis).~ (Photo: Xerces Society / Sarina Jepsen)

While all pollinators are facing significant threats, an analysis led by the Xerces Society, and coordinated with the IUCN North American Bumble Bee Specialist Group, indicates that more than one-quarter of North American bumble bees are facing some degree of extinction risk. Read the profiles below to learn more about these important, and imperiled, pollinators.

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