Like the legendary Moby Dick, the full-grown beluga whale is snowy white. Yet unlike Herman Melville's mostly fictitious albino sperm whale, which had only Captain Ahab to deal with, the beluga swims ...

They are bigger than all but the largest dolphins and smaller than most other toothed whales. At birth, beluga whales are five feet long, roughly 100 pounds, and dark blue-gray in color. Unmistakable ...