Isolating elements of a subject can be a good photographic tactic. Hippos have always looked like creatures from another time to me. Photojournalist Martin Meissners close study of this hippos eye illustrates that idea very well.

Martin Meissner/AP
The eye of a hippo is seen at the season opening of the ZOOM Erlebniswelt adventure park in Gelsenkirchen, Germany on March 21.