This week the fantabulous Diffusion team investigate the science of hair and reveal everything you have always wanted to know about echinoderms. How do we manage to pack all that AND your weekly science news into 30mins? Download this weeks show to find out! Presented by Tilly Boleyn, Science news by Jacqui Pfeffer, The science of hair by Lindsey Gray, The world of echinoderms by Lachlan Whatmore, Produced by Tilly Boleyn.