BBC World Service - Discovery

Gateway to the Mind—The Second Genome

3/3 Could our microbiome have an influence on our mood and behaviour?

2/3 How the microbes in us set us on a path of health or chronic disease

1/3 New research into manipulating our microbiome to stay healthy and beat chronic disease

2/2 Do insects experience pain and suffering?

1/2 Killing insects in the name of research upsets some people. How do scientists justify it?

And how do bats differentiate their own echolocation signals?

Plus, how can we measure the age of the Universe?

And are machines better than humans when it comes to recognising faces?

And what makes something sharp?

And why do I get so many static shocks?