Caption: Male Lion (Panthera leo) following female lion after she initially rejects his attempt to mount her, Mashatu Game Reserve, Tuli Block, Botswana. © Scotch Macaskill

Camera: Canon EOS 400D (Digital Rebel XTi); Lens: Canon 70-300 F4-5.6 IS USM; Focal Length: 120mm; Shutter speed: 1/500; Aperture: f5.6; ISO: 400.