Join us on January 18 for a day of memories, music, and mementos honoring the life and legacy of Claude, San Francisco’s ...

SAN FRANCISCO, CA (December 16, 2025) — Researchers at the California Academy of Sciences recently traveled to Guam to retrieve valuable data collected over nearly a decade in deep coral reefs (>330 ...

We lost our dear Claude a week ago, and there are still no words. Luckily, there are plenty of pictures. Enjoy.

SAN FRANCISCO, CA (December 2, 2025) — It is with a heavy heart that we share the news that Claude, our beloved albino alligator, has passed away at the age of 30. Claude was an iconic California ...

Says lead author Camilo Mora of the University of Hawaii and Dalhousie University in Halifax, Canada: “The question of how many species exist has intrigued scientists for centuries and the answer, ...

SAN FRANCISCO, CA (August 11, 2025) — The California Academy of Sciences is gearing up to celebrate one of our most iconic residents: Claude, the beloved albino alligator, who turns 30 on September 15 ...

SAN FRANCISCO, CA (June 26, 2025) — Researchers at the California Academy of Sciences and partners rediscovered a presumed-extinct black stony coral species in the Galápagos—its first sighting in 24 ...

WHAT: Three fully mature sunflower sea stars (Pycnopodia helianthoides) are now on exhibit for the first time in the California Academy of Sciences’ Steinhart Aquarium, sharing a habitat with the ...

SAN FRANCISCO, CA (May 5, 2025) — The 10th annual City Nature Challenge global bioblitz has concluded, yielding more than 3.3 million wildlife observations for another record-breaking year. Over the ...

SAN FRANCISCO, CA (July 12, 2023) — In a paper published today in Nature, researchers from the California Academy of Sciences, University of São Paulo, University of Oxford, University of Exeter, and ...

SAN FRANCISCO, CA (March 17, 2025) —More than 70 percent of the Earth’s surface is covered by oceans, and beneath the surface lies a hidden world. In Unseen Oceans, a new exhibition on view at the ...

SAN FRANCISCO, CA (February 18, 2025) — Academy researchers and partners made the first discovery of both a new genus and species of plant in a U.S. national park in nearly 50 years. The ...