海獣 (かいじゅう, kaijū) is a Japanese term that translates to "sea monster" in English. It refers to various mythical or legendary creatures that inhabit the ocean. These beings often appear in folklore and stories, symbolizing the mysteries and dangers of the sea. In popular culture, 海獣 can also refer to giant creatures in movies and literature, such as those seen in the Godzilla franchise. These creatures are typically depicted as powerful and often destructive, reflecting humanity's fears and fascination with the unknown depths of the ocean.