Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

Check out the surprising diversity of life living in the arid climate of Joshua Tree National Park. How many will you see?

(CNN) — Inside a Mojave aster flower, a tiny bee is fast asleep. At night, the pale lavender petals close, providing a safe resting place. In the morning, as birdsong rings out across the desert, the ...

(CNN) — Inside a Mojave aster flower, a tiny bee is fast asleep. At night, the pale lavender petals close, providing a safe resting place. In the morning, as birdsong rings out across the desert, the ...