A yellow to peach colored "black" coral. Why do some polyps have a yellow
interior while others don't?
Image ID: expn4237, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Hawaii, Maro Crater
Photo Date: 20150805T221650Z
Credit: NOAA Office of Ocean Exploration and Research, 2015 Hohonu Moana
• High Resolution Photo Available