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Journal of A Robberfly in Mexico


Bay Area lepidopterist Liam O’Brien spent the 2019 City Nature Challenge surveying the biodiversity of Mazatlan at the invitation of Mexican naturalists.

Sex and the Single Butterfly


What most of us call “butterflies” are in fact just the fleeting last life stage of a creature with only one remaining purpose.

Coe Kaleidoscope


When it comes to wildflowers, you can’t do any better than a visit to Henry Coe, Northern California’s largest state park. Winslow Briggs, who wrote the book on the park’s trails, walks us through a year of blooms, taking us from season to season in a wild but accessible landscape.