Charles Munn
Director of Jaguar Research Center
Hiking through the Amazonian rainforest
Sport hat by Sunday Afternoons, $35; rei.com
Permethrin insect repellant by Sawyer, $7; rei.com
Birds of Peru by Thomas S. Schulenberg et al, $50; amazon.com
Dick Jackson
Owner and president of Aspen Expeditions
Ski touring in the Norwegian Alps
Deploy 3 shovel by Black Diamond, $60; bdel.com
Axon ski boots by Garmont, $850; garmont.com
Exum Gore-Tex jacket by Marmot, $375; marmot.com
Catherine N. Cooke
Executive director of San Antonio River Foundation
Trekking in the Himalayas
Pampero pack by Marmot, $90; marmot.com
Enduring Edge sunglasses by Oakley, $175; oakley.com
Zephyr II backpacking boots by Vasque, $170; vasque.com
Wallace J. Nichols
Senior scientist at Ocean Conservancy
Sea-turtle sighting in Baja California
Clif Bar, $15 for 12 bars; clifbar.com
Stainless-steel water bottle by Klean Kanteen, $15; kleankanteen.com
Xacti E1 waterproof video and still camera by Sanyo, $500; sanyodigital.com
Luke Bailes
Chairman of Singita Game Reserves
Going on safari in the Serengeti
Nikon D80 digital camera, $800; nikon.com
Snowy River hat by Akubra, $120; davidmorgan.com
Swarovski Optik EL 10x42 binoculars, $2,190; swarovskioptik.com