Fish From the Abyss: Inside the Ocean's Twilight Zone
Between the ocean's bright blue surface and its blackest depths -- 660 to 3,300 feet below -- is a mysterious, dark span of water. Welcome to the twilight zone.
Recent evidence suggests there are more animals here by weight than in all of the world's fisheries combined. But who lives here, and in what quantities?
Since August, a group of scientists has been using new technology to better understand the twilight zone's strange inhabitants. They hope their findings will lead to a mo...