Scientist Kirra Swenerton of Francisco Recreation and Parks and Christal Niederer, a biologist with Creekside Center for Earth Observations, prepare to place a small female Mission Blue butterfly on a Silver Lupine plant Friday. Teams of scientists relocated dozens of Mission Blue butterflies that are native to San Francisco from San Bruno Mountain to Twin Peaks in San Francisco in an effort to bring back the spices. Photo: Lance Iversen, The Chronicle
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