California red-legged frog

Red Hill Grove provides critical habitat for a wide variety of rare, threatened and endangered species, including the northern spotted owl. Photo by Tom Kogut/USFS, Flickr Creative Commons

Celebrating 50 years of the Endangered Species Act

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Oil prices were skyrocketing. Gerald Ford was stepping into Spiro Agnew’s tarnished VP shoes. The Exorcist was nominated for Best Picture. Such was the national landscape on December 28, 1973, when President Richard Nixon signed one of the country’s most …