For 20 years, the National Geographic photographer has showcased Earth’s animals in a series of striking images that make ...

Twenty years ago, wildlife photographer Joel Sartore set out to capture portraits of every species in human care. Today, ...

Photographic reference with facts about twenty-five hundred animal species that detail animal habitats, life cycles, and conservation efforts. Includes glossary and separately paged section at the end ...

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 ...