This is the most incredible perspective of a polar bear that I've ever seen—down to the way the ice, water, and bubbles frame ...

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-br ...

SAN FRANCISCO, CA (May 9, 2024) – The California Academy of Sciences has received a $3 million, five-year grant from the Gordon and Betty Moore Foundation to bolster biodiversity data collection and ...

Each of the winning images from the BigPicture: Natural World Photography Competition enshrines a fleeting moment on Earth that might otherwise escape our attention. Visit the interactive exhibit ...

Diet: In the wild: fish, birds, reptiles, mammals. At the Academy: 1,500 grams of fish and 1,250 grams of rats weekly Claude, an American alligator (Alligator mississippiensis), hatched on an ...

To date, the larger Pacific striped octopus has been observed only in a small handful of locations off the coast of Nicaragua, in murky intertidal waters close to the mouths of rivers. For all we’re ...

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Did you know that over 30% of all plant and vertebrate species in the United States occur in California? And that about 30% of California species are at risk of extinction? Since 2018, California ...

Cal Academy opens at 9:30 a.m. Mon.–Sat. and 11 a.m. Sun. 10:15 a.m. Learn about animals' senses—including your own!—through this interactive Sensory Storytime. Daily, 10:15 a.m. 10:30 a.m. Learn ...

SAN FRANCISCO, CA (January 7, 2026) — Researchers at the California Academy of Sciences described 72 new animal, plant, and fungi species in 2025, enriching scientists’ understanding of Earth’s ...

In this story a thirsty crow drops stones into a half-full pitcher of water, raising the water level in the pitcher until it is high enough for the crow to drink. In the equivalent experiment subjects ...

Scientists used these physical factors to create a mathematical model that relates the leaf size to a given tree size. As trees get taller, trunk resistance slows the flow. Increasing leaf size might ...