Tag: snail

The color purple, and the feeding ecology of a snail

Tyrian purple is a unique dye, which comes from the snail Hexaplex trunculus. Thousands of years ago, so many snails were harvested that the shells left behind forever changed the landscape of many Mediterranean cities. These middens, mounds of shell remains reflect the demand of ancient royalty for something as simple as the color purple. By pairing archeological studies of middens with modern experiments, the feeding patterns of H. trunculus can be revealed.