Explores how plants and animals survive in one of Earth's harshest environments—deserts, where annual rainfall is less than 10 inches and temperature extremes are common. The film shows how desert ...

Once thought resistant to invasion, regional deserts are losing native plants to aggressive weedy species like Saharan mustard. New research shows its spread is disrupting biodiversity and reducing ...

Across America, a handful of extraordinary national parks give travelers the rare chance to see endangered animals thriving ...

The United States is home to several rare animal species that exist nowhere else in the world. Many of them live in protected ...