Rosinha Rocha

The seawater circulating outside the biospheres helps keep their temperatures fairly steady.

A zebra herd wades through the waters of the Okavango Delta in the Selinda Spillway, a channel that attracts abundant wildlife in northern Botswana.

According to Fall Gueye, food’s role in teraanga doesn’t end with meals. It also unifies members of different religions. Senegal is a majority Muslim nation, and around Easter “Christians have this meal that they prepare that we call ngalax, made of millet and peanut butter and baobab fruit powder,” she said. “You will have families, Christian, bringing that food to Muslim families.” The holiday food sharing goes both ways: during the holiday of Eid al-Adha, Muslim celebrants offer lamb to their Christian neighbours.