color photograph Excellent condition. A close-up of Dr. George Benz, Chief Research Scientist at the Tennessee Aquarium and Director of the Southeast Aquatic Research Institute, standing by a shark cartilage skeleton that is in a jar on a table or shelf. He has his left hand on the jar. From External Affairs. A photograph of Dr. Benz and the shark cartilage skeleton appeared on page 5 of the November 1998 issue of the Saint Mary's University Times, but it was not this exact photo.