From an elusive jaguar to an industrious beaver, photographers captured iconic animal moments around the world.

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

These ancient trees persisted for nearly 200 million years until they all but vanished. Now they line city streets.

Beneath the cliffs of western Colorado, a billion years of geologic history unfolds—and a century-old dream of accessibility ...

Beneath the cliffs of western Colorado, a billion years of geologic history unfolds—and a century-old dream of accessibility still shapes the land.

Webs can be decorated with decoys, fine-tuned like guitars—and hold secrets about evolution. A Cyclosa spider is camouflaged on a web with debris attached to make itself less visible at the Los Amigos ...