Corals live in oceans around the world—in shallow, warm waters and deep, cool waters, clinging to seamounts or sitting on continental shelves. They also grow in the home aquariums of countless ...

Martin Sheen senses something fishy in the aquarium industry. The new documentary Aquariums: The Dark Hobby, which Sheen, 84, produced and for which he filmed the introduction, dives into the death of ...