Expert explains why North American bird populations are declining

According to recent data, bird populations in North America have declined by approximately 2.9 billion birds, a loss of more than one in four birds since 1970. Experts say this bird loss will continue to grow unless changes ...

Cracking the mysterious case of dying desert forests

From above, the Southwestern U.S. is a sea of caramel and brown desert. Yet, a closer look uncovers small ribbons of green—desert forests that flourish along valuable springs and rivers. Wildlife thrives at these oases, ...

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