Shells, often overlooked on the sea shores, tell professor Geerat Vermeij a story about evolution that spans millions of years. Vermeij, a leading geologist and creator of the famous escalation theory, has been captivated by shells since a young age. His is the story of pursuit of passion despite an obstacle that might deter others. You see, professor Vermeij is blind.

Listen to his inspiring story of beauty and undeterred curiosity about the world around us.