Pythias of Assos was not just his wife, she was his intellectual partner. While Aristotle built his name as one of history’s greatest thinkers, Pythias explored the natural world with him. Ancient sources describe her as a biologist and embryologist who studied plants and animal development, working from the island of Lesbos where much of Aristotle’s early biological research began. In their shared studies, Pythias collected living specimens and helped record details of growth, reproduction, and