Water-borne stimuli released by predatory crabs and damaged prey induce more predator-resistant shells in a marine gastropod.

Individuals of the morphologically variable, rocky intertidal gastropod Thais (or Nucella) lamellosa developed larger apertural teeth when held in the presence of the predatory crab Cancer productus than when held in its absence, regardless of whether snails were fed or not. In addition, among fed s... View More