This is a recurring event. Check the daily calendar for more schedule information.

This is a recurring event. Check the daily calendar for more schedule information.

This is a recurring event. Check the daily calendar for more schedule information.

Claude turns 30 on September 15! Celebrate with us all month long. Unlike a human or your pet dog or cat, Claude, the Academy’s unofficial mascot, doesn’t have to get a doctor’s checkup once a year.

Prepare to cross over into the Twilight Zone, a newly refreshed exhibit in Steinhart Aquarium that unveils the dazzling marine life inhabiting mesophotic reefs 100 to 500 feet below the surface.

Our first wallpaper drop is 100% Claude in honor of his 30th hatchday, but more digital biodiversity is in the works. Stay tuned!

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SAN FRANCISCO, CA (July 31, 2025) — The California Academy of Sciences and partners at Roatán Marine Park (RMP) in Honduras recently opened the first land-based coral rearing facility in Central ...

The Philippine Coral Reef, the gateway to our larger Coral Reefs of the World exhibit, highlights waters known as the center of marine biodiversity—an area of unbelievable beauty and importance. From ...

This post is part of Exploring Earthquakes, a rich collection of resources co-presented by the California Academy of Sciences and KQED. This material is also available as a free iBooks textbook and ...

Step in and hang on as our earthquake simulator recreates California's powerful 1906 and 1989 quakes.