Across sea ice, rainforests, and open water, Paul Nicklen photographs animals with the intimacy of a witness rather than a spectator. His new book, Reverence, brings those encounters together as both a celebration and a plea to protect the places that made them possible.

Getting up close with a majestic bear in Alaska's Katmai National Park and Preserve: More than 2,000 brown bears live in the preserve's four million acres, where they gorge on s
A Kermode bear, also called a spirit bear, rests in British Columbia's mossy Great Bear Rainforest, where heavy rainfall and mild temperatures support lush green vegetation. The
A large aggregation of narwhals, called a blessing, surfaces near Canada's Baffin Island, where seasonal ice melt funnels the migrating whales together
A tube anemone extends its tentacles through the sediment during a night dive in Lembeh Strait, Indonesia, capturing plankton and small particles under blue light
Bigfin reef squid, known for its rapid color-changing ability, photographed on a night dive in Raja Ampat, Indonesia
A mother gray whale gazes into an underwater camera dome off the coast of Baja California Sur, Mexico. The waters here are so rich in biodiversity that Jacques Cousteau once cal
Mobula rays swim underwater in mass numbers as light shines down on them
Steller sea lions pass a sea star between them off the shore of British Columbia, Canada, in a playful game