A new study shows 13 species of Sonoran desert birds are delaying nesting during drought years, often with dismal results.
Imagine tens of thousands of northern fur seals on the Farallon Islands. Scientists are watching history repeat itself–150 years later.
Most of the aspen stands that dotted the Sierra Nevada less than a century ago are gone or in poor health. It may take aggressive mechanical treatment to restore them.
A new study shows taking short breaks from grazing can increase native plants.
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