Retracted : The sensory ecology of fear: African elephants show aversion to olfactory predator signals

The outcomes of human‐elephant conflict range from expensive to fatal to both humans and elephants across Africa and Asia, which has prompted extensive efforts to mitigate it. Previous attempts have focused primarily on physical barriers, plant deterrent compounds, and elephant‐nuisance species. However, the handful of effective approaches are expensive and maintenance‐intensive. Here, we approach the problem from the perspective of the sensory ecology of fear, and demonstrate elephant aversion to olfactory signals of lions, African elephants' top predator. We find that elephants demonstrate aversion to olfactory predator signals, and moreover, to inexpensive synthetic mixtures mimicking these signals. This research illustrates the importance of predator avoidance even in the world's largest land animal, and provides the basis for its practical implication to mitigate a devastating and enduring problem.