Depictions of dolphins in ancient art.
Dolphin mosaic from the Baths of Buticosus, Ostia Antica. Roman, 2nd century. Photo by Roger Ulrich.
Dolphin fresco, Knossos, Crete, 1700-1450 BC. Photo by H-stt, via the Wiki Commons.
Youth playing the flute and riding a dolphin. Red-figure stamnos, 360–340 BC. Alcestis Group, from Etruria. Courtesy of the National Archaeological Museum of Spain. Photo by Jastrow, via the Wiki Commons.