A beluga whale learned to talk like human just by listening to human conversations. Its ability to mimic human voice was so good that once a diver thought someone in the water was actually talking to him.
According to the National Marine Mammal Foundation, the beluga whale called NOC could imitate human voice.
“The whale’s vocalizations often sounded as if two people were conversing in the distance. These ‘conversations’ were heard several times before the whale was eventually identified as the source. In fact, we discovered it when a diver mistook the whale for a human voice giving him underwater directions.”