A newly released eBook, written by Gerard Corthier and Katrine Leverve, is an engaging guide to the "good" bacteria in the human body. Through short paragraphs of text and whimsical cartoons, the book gives an overview of topics that will be well familiar to scientists, and which can be a good starting place for discussion with those outside the field.

Francisco Guarner, director of the Digestive System Research Unit at University Hospital Vall d’Hebron in Barcelona (Hospital Universitario Vall d’Hebron), granted us an interview during the 4th Gut Microbiota for Health World Summit 2015 to discuss the microbiota and humans.

A team of scientists led by Premysl Bercik, Associate Professor of Medicine at McMaster’s Michael G. DeGroote School of Medicine, carried out two sets of experiments with mice with the goal of studying the effect of gut microbiota on behaviour in an established model of anxiety and depression.