This document discusses merfolk legends, describing mermaids as having the upper body of a woman and the lower body of a fish, with hair and a moon-like face but hands and feet contained within their bellies. For centuries, oceans were believed to hide mysterious creatures like sea serpents and mermaids due to most of the planet being covered in water and captivating human imagination with legends of half-human, half-animal beings, including the marine version known as merfolk.