African buffalo are hardy critters, able to live and flourish in many habitats—from semi-arid bushland to coastal savannas to lowland rainforests—as long as they’re close to a water source.

The Addo Elephant National Park in South Africa was established 94 years ago to protect the last 11 elephants in the Eastern Cape region. Since then, the reserve has expanded to 155,000 hectares and ...