In this Saturday July 6, 2019 photo, Saitoti Petro, center wearing blue, tracks lions near the village of Loibor Siret, Tanzania. Petro is one of more than 50 lion monitors from communities on the Maasai steppe who walk daily patrol routes to help shepherds shield their cattle in pasture, with support and training from a small, Tanzanian nonprofit called African People & Wildlife. (AP Photo/Jerome Delay)
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