While walking through the woods on a summer day a few years ago, I heard a high-pitched scream. I knew at once what it was — a garter snake had caught a wood frog. I followed the sound to its source, ...

Endangered frogs snatched as tadpoles from fire-ravaged mountains above Los Angeles in 2020 were returned home last year in a moment of hope and excitement. But the California amphibians are once ...