In the middle altitudes of the Serengeti, the greenery perks up in the wake of the wet season. After the long rains of April and May, the herbivores of the African savannas relax and in huge numbers feed on the plentiful clumps of short green grass that cover the northern hills. These disappear in the following weeks, and the animals head south, subsisting on less-palatable but hardier tall grasses, like... More >>>