The ultimate summer muse? From classical antiquity to today, artists remain transfixed by bathers. Naked-in-the-water scenes by Paul Cézanne, J. M. W. Turner, Jean-Baptiste Oudry, Pierre-Auguste Renoir, Auguste Rodin, Pablo Picasso, David Hockney, Damien Hirst, and Peter Doig have been brought together at Saatchi Yates. A trip to the gallery will answer questions about why humans in the act of washing themselves make such popular subjects. Hint: it all goes back to our beginnings in the ocean, and our Fall from grace. —Clara Molot