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

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Learn about our charismatic African penguin colony from an Academy biologist. Daily, 10:30 a.m. and 3 p.m. Watch as a diver plunges into one of the world's deepest living coral reef tanks. Daily, ...

Fricke, R., Eschmeyer, W. N. & R. van der Laan (eds) 2025. ESCHMEYER'S CATALOG OF FISHES: GENERA, SPECIES, REFERENCES.(http://researcharchive.calacademy.org/research ...

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 (December 16, 2021) — In 2021, researchers at the California Academy of Sciences added 70 new plant and animal species to the tree of life, enriching our understanding of Earth’s ...

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 ...

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 ...

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 ...

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, ...

“No one has looked at the evolution of the very earliest sea lily fossils in quite this way before,” says Rich Mooi, a collaborator on the paper, and an invertebrate zoology curator at the California ...

SAN FRANCISCO, CA (August 15, 2022) — California now has two new scorpions on its list of species, thanks to the efforts of two keen-eyed high school students from the Bay Area and the California ...