Leif Richardson

Bombus frigidus, the frigid bumblebee, is a rare species of bumblebee largely found in Canada and parts of the United States.

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A statewide survey of California's bumblebees hopes to help conserve them — NPR's Ailsa Chang searches coastal California for wild bumblebees with conservation biologist Leif Richardson, one of the leaders of the California Bumble Bee Atlas.