Lone acacia (Vachellia sp.), Zakouma National Park, Chad Growing in the center of a dried pan, an acacia is surrounded by the tracks and trails of hundreds of animals, from elephants to buffalo to marabou storks. Canon EOS-1D X Mark II, EF100-400mm f/4.5-5.6L IS II USM lens, f/8 for 1/1000 second, ISO 4000