The creature in Greek mythology known for its snake-like body and ability to turn people to stone is the Gorgon, particularly Medusa. Medusa's hair is made of snakes, and anyone who gazes directly at her is transformed into stone. This myth serves as a powerful metaphor for the dangers of beauty and the consequences of vengeance. Medusa's role highlights themes of fear, power, and the tragic outcomes of curses, making her a complex figure within the mythological landscape.