The mammal known to have the best sense of smell is the African elephant. Elephants possess an extraordinary olfactory capacity, with about 2,000 genes related to scent recognition—significantly more than humans. These impressive olfactory abilities help them detect water sources, food, predators, and communicate with other elephants through scent markers. Their sense of smell not only aids survival but also plays a crucial role in their social interactions. Elephants can detect musth pheromones from miles away, signaling reproductive readiness. This remarkable sense reflects their adaptability to their environment and influences their behavior in the wild.