Acacia trees are most commonly found in Africa’s savannas.    They stand alone, upright, tall, and leafy, casting shade on giraffes—an escape of noonday    Serengeti heat. The darkness of the wood contrasts sharply against the wide, green leaves that    photosynthesize eagerly in the brutal African sun; light courses through their stringy veins. Their branches    have thorns, two inches long. When […]