At The Opera (Answer to the Question Whether Sponges Possess Consciousness) (In der Oper (Entscheidung der Frage, ob den Schwämmen Bewußtsein zukommt))
Credit: Johanna and Leslie Garfield Fund
1973
Photolithograph on flocked paper
240.1997
Image © 2019 Estate of Sigmar Polke / Artists Rights Society (ARS), New York / VG Bild-Kunst, Bonn, Germany
Ble byddwch chi'n dod o hyd i hwn
The Museum of Modern Art
Casgliad barhaol