During the long dry season, they seem dead, their twisted bark peeling and grayish, limbs leafless and scraggly, looking almos...

Left: Raccolte Extraeuropee del Castello Sforzesco [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedi...

Each spring, four staff members from the Arusha office visit the United States for an all-expense paid, two-week trip, courtesy...

When I visited the Serengeti, I expected to see giraffes and zebras, beautiful landscapes and peaceful sunsets over the plains....