Koshik was the Asian elephant that imitated several Korean words by placing his trunk inside his mouth. He lived at Everland in South Korea, where researchers studied his unusual vocal behavior and found that his sounds could be recognized as Korean words by native speakers.
Koshik’s technique was mechanically ingenious. He placed the tip of his trunk in his mouth while vocalizing, then used the trunk and jaw to reshape the vocal tract. This allowed him to imitate acoustic features of human speech that elephants normally cannot produce with their ordinary calls.
The 2012 scientific report described imitations of Korean words including forms corresponding to “hello,” “good,” “sit down,” “lie down,” “yes,” and “no.” Researchers emphasized that vocal imitation did not prove Koshik understood the words’ meanings; it demonstrated an impressive capacity to reproduce human speech sounds.
Koshik’s behavior is also linked to his social environment. As a young elephant, he spent years without another elephant companion and interacted closely with human keepers. This may have encouraged vocal imitation as a way of maintaining social contact, although the exact motivation remains uncertain.