Mark Miodovnik, a materials scientist from UCL specializing in batteries, discusses the urgent need for next-gen battery technologies amid recent lithium-ion plant fires. He highlights the limitations of current lithium-ion solutions and the emergence of alternatives like solid-state and sodium batteries. Additionally, the conversation shifts to 'dark oxygen' found in deep oceans, potentially impacting marine life. Anjana Ahuja joins to share intriguing science stories, including innovative materials and the peculiar behavior of contagious urination in chimpanzees.