In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ imperceptibly weakens and deteriorates it, and progressively diminishes its functional capacity, until it finally disappears. — Jean-Baptiste Lamarck Philosophie Zoologique (1809) mixed media: acrylic paint on paper, monotype & laser print, photo cut out & collage. Jardin des Plantes : Galerie d’Anatomie, Paris 2015