Crossed Fingers for a Threatened Butterfly

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If you stand with your back to the sun and inspect the place on the ground where your shadow is cast, you might spot the tiny larvae of the threatened Bay checkerspot butterfly.

“It takes some practice,” said Stuart Weiss, a conservation biologist from the Creekside Center for Earth Observation. “But when you see a little black object that stays black, that’s usually a checkerspot.”

Crossed Fingers for a Threatened Butterfly – NYTimes.com.

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