From vibrant purples and yellows to deep red, the animals of the deep ocean are full of color. But if there is no light in the depths of the ocean, what's the point of being so colorful? This video explains the role of color in the otherwise dark enviroment of the deep. Learn more about color in deep-sea corals here: http://oceanexplorer.noaa.gov/okeanos... Video courtesy of the NOAA Office of Ocean Exploration and Research, Mountains in the Deep: Exploring the Central Pacific Basin. Learn more about the expedition here: http://oceanexplorer.noaa.gov/okeanos... [Source: http://oceanexplorer.noaa.gov/okeanos...]