Photo courtesy of the Natural History Museum
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Back for its fifteenth year, the Natural History Museum invites you to examine more than fifty-three butterfly and moth species -- including the monarch, the Spicebush swallowtail and the California dogface -- along with an assortment of California plants.

From the NHM website:

More than 53 different butterfly and moth species and an array of plants take up residence every summer for our much-anticipated seasonal exhibit, the Butterfly Pavilion. Wander through a unique changing ecosystem, witness free-flying creatures interacting with plant life, and emerge with a better understanding of the environment needed for the survival of these spectacular animals.

Click the link above for more information. Through Sept. 2. As this is an outdoor event, it may be closed due to inclement weather.