Of the three Gorgons, she was known to be the most independent and ferocious, having killed more men than both of her sisters combined. In Greek mythology, she was transformed into a Gorgon because of standing with her sister Medusa, who was either raped or seduced by the sea god Poseidon in the Temple of Athena. Athena was furious with Medusa. As a punishment, Medusa was changed into a terrible monster, along with her sisters Stheno and Euryale. Stheno tends to be depicted as a thin gorgon monster with red snakes curling around her head instead of hair.