What are the hidden secrets of the ocean and what aspect of the ram's horn squid's (otherwise known as Spirula spirula) behaviour in captivity turned the squid science community? Jyotika Virmani, executive director of the Schmidt Ocean Institute, talks through fascinating new marine technologies that give us a glimpse into underwater life and discusses how the discovery of new animal ecosystems underneath the sea floor raises questions about the ethics of deep sea mining. | Royal Institution of