Mercredi 4 décembre 2024 à 11h00 ; salle des séminaires IRPHE
Abstract: Molluscan shells exhibit a diverse range of pigmentation patterns. In the current work it is shown
how a concept of dynamic excitability may underlie several classes of pigmentation patterns. In a
dynamic excitable model an underlying excitable system switches between different unsteady states.
A fast switching between two states is seen to be responsible for the emergence of some of the more
complex pigmentation patterns observed in molluscan shells.