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maps of CA biodiversity

Can California Reverse Biodiversity Decline?

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At a time when development is paving over habitat and climate change is transforming ecosystems at an unprecedented pace, California Secretary for Natural Resources Wade Crowfoot says the state has a moral imperative to focus on biodiversity.

big sur coast

Live Biodiversity

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There’s a certain predictable expression that frequently settles on the face of the friend or family member I’m talking to when I say the word “biodiversity.” I’d call it tolerantly bored. The term has been so overused in so many … Read more

robin cup nest

How Do Birds Know How to Build Nests?

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There are 10,000-plus species of birds in the world, about 1,100 species in the United States, and 350 or so in the greater Bay Area, so there is great variability in nests. But the basic purpose of any nest is … Read more

salt marsh harvest mouse

A Mouse Surprise

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Despite the fact that the salt marsh harvest mouse is the only mammal that scrapes out its existence exclusively in tidal marshes, no one has ever bothered to seriously study its physiology.