India, Aug. 21 -- Khaiyr Galym looks like a cowboy straight out of Central Casting. The wide-brimmed hat, the weather-beaten cheeks, the shy smile, and the gruff manner-it's everything I imagine from a Texan cowboy. Except this one lives in a landscape that seems a world away from the dusty plains of the American South.

From Left: In a nomadic shepherding family, every member-male or female, young or old-is skilled in horse riding and rounding up livestock; the livelihoods of these nomadic families are entirely dependent on their livestock, which means their daily routines are dictated by the grazing needs of their horses, yaks, sheep, and camels. While the men help round up the animals at the end of the day, the women feed and milk them...