Humans wiped out a native San Francisco butterfly. Now another species is filling its 'big blue shoes'
![Dozens of silvery blue butterflies have been released at the Presidio National Park in San Francisco, Calif., to fill the ecological gap left by the Xerces blue butterfly, a native species last seen in the 1940s. Closeup of a fuzzy, bright blue butterfly with white-tipped wings perched on a plant.](https://i.cbc.ca/1.7181510.1713819703!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/silvery-blue-butterfly.jpg)
For decades, conservationists have been restoring the biodiversity of San Francisco's coastal dunes. But a key piece of the puzzle was missing — until now.
from CBC | Technology News https://ift.tt/4P3My0p
Humans wiped out a native San Francisco butterfly. Now another species is filling its 'big blue shoes'
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