Sami Herder, Scandinavia

Sami: The People Who Walk With Reindeer.
Cone-shaped tents called lávut provide temporary shelter for Sami herders while following the reindeer. Nils Peder Gaup, resting here on the tundra, feels most at home in the mountains. "The Sami spirit follows you," he says.

Langurs, Rajasthan state, India

After a rare downpour langurs seek shelter from a fleeting desert waterfall. The Thar is usually inhospitably hot and dry, reaching 120°F. These monkeys, which are about two feet long and 25 to 40 pounds, are the only primates besides humans that thrive in this harsh habitat.