A merman is a mythical creature that is often depicted as having the upper body of a human and the lower body of a fish. This figure is commonly found in folklore and mythology across various cultures, including Greek mythology and Norse mythology. Mermen are typically associated with the sea and are sometimes portrayed as guardians of underwater treasures. In many stories, mermen possess magical abilities and can communicate with marine life. They are often depicted as both benevolent and malevolent, depending on the tale. Mermen are frequently featured in literature, art, and popular culture, contributing to their enduring fascination in fantasy and mythological narratives.