A mermaid (from the Middle English mere meaning "sea" and maid, meaning "girl") is a legendary aquatic creature with the head and torso of a human female and a fish-like tail. The male version of a mermaid is known as a merman, and the gender-neutral plural is merfolk or merpeople. Merfolk appear in a plethora of cultures worldwide—legends often tell of mermaids singing to sailors, enchanting them, and luring them to their death. The origin of the mermaid legend is often traced to the manatee or dugong, large aquatic mammals that can sometimes have human-like characteristics.