Animal trainer Stephan Miller was filming a promotional video when his play-wrestling with a bear took a turn for the worst.

From western toad tadpoles to glowing wetlands, this year’s winners capture nature’s beauty—and its fragility.

In the northern reaches of Japan, a realm of ethereal, old-growth forests and icy coastal waters offer some of the country’s ...

High in Romania's Carpathian Mountains, advocates are pushing to protect one of Europe's last stretches of wilderness and ...