Could our microbiome be a source of new antibiotics? How much does what we eat change the composition of our microbes? Ed Yong answers questions from the audience after his talk. Watch the full talk here: https://youtu.be/UOymDhGxS9Q Subscribe for regular science videos: http://bit.ly/RiSubscRibe You can buy Ed's book "I Contain Multitudes: The Microbes Within Us and a Grander View of Life" now - https://geni.us/j0l7Q9 Your body is teeming with tens of trillions of microbes. It’s an entire world, a colony full of life, a thriving ecosystem. These microscopic companions sculpt our organs, protect us from diseases, guide our behaviour, and bombard us with their genes. They also hold the key to understanding all life on earth. Science writer Ed Yong explains how bacteria have shaped animal evolution and human health, why breastfeeding is about more than just babies, how animals can survive without mouths or guts, and why Australian scientists are fighting tropical diseases by releasing infected mosquitoes. Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link.