The right eye of a Grévy's zebra can be seen in close-up against a blueish background. Shot with a Nikon D800 and an 80-400mm lens at the Parque de la Naturaleza de Cabárceno, near Santander, Spain, in June 2017.
ISO 1100, 400mm, f/5.6, 1/250, 0 EV