By Sarah Khan
NOC, a captive Beluga whale in California learned to imitate the sound of talking humans. Back in 1984 NOC fooled a diver into thinking he was being ordered to get out of the whale's tank by repeating noises which sounded like "out"! At the same time, people heard what sounded like conversations near NOC's enclosure, but no humans were in the area!
NOC's speech-like sounds are considered to be human imitations because it is a much deeper voice than a whale's natural sound. Why NOC did this is unclear. Marine animals have the ability to imitate each other, so it's possible NOC was just doing what came naturally.
Listen to NOC's amazing imitation here!