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A black-backed jackal (Canis mesomelas) stalking birds drinking at a waterhole, Kalahari desert, South Africa
Close-up of muscular Black man's sweaty back and defined arm muscles during intense pull-up exercise with green wrist straps in modern functional training gym
Strong workout session focusing on core strength and back engagement led by a trainer in a modern gym environment
Close up. Male hands holding massaging lower back. Man in white T-shirt suffering from back pain while sitting on sofa in living room at home. Male massages painful muscles, has sciatica or sick spine

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