"Every one of us is a zoo in our own right – a colony enclosed within a single body. A multi-species collective. An entire world."

In this episode, we chat to science writer Ed Yong about his upcoming book and The New York Times Bestseller, 'I Contain Multitudes: The Microbes Within Us and a Grander View of Life'.

It's a book about the trillions of microbes that live on us and within us; microbes that build our bodies and organs, protect us from disease, shape our behaviour and drive the processes for life on earth.