Imagine being submerged in the ocean. As one watches the flickering light penetrate the water, the dancing rays of light seem to make a beeline for the bottom of the ocean, pulling one's curiosity with it. What is down there? Exploring within the first 60 feet or so, one can easily see healthy living coral and a plethora of colorful fishes darting and poking around like busybodies. About 90 percent of all known marine life is found in the first 600 feet, an area known as the euphotic zone. However, the deeper we travel the less we know about the environment and creatures we encounter. An estimated 95 percent of the world's ocean has yet to be seen by humans.