Producer/Host: Sarah O’Malley This episode continues the discussion of the role of shells in marine invertebrates, including protection from predation and the environment. Like vertebrate skeletons, invertebrate shells also provide attachment points for muscles and enable complex movement. About the host: Sarah O’Malley is an ecologist, naturalist and science communicator passionate about deepening her listeners’ experiences with the natural world. She teaches biology and sustainability at Maine Maritime Academy and is currently collaborating on a guide book to the intertidal zone in the Gulf of Maine.