Bacteria at the crossroads (IMAGE) McGill University Caption By observing 5 different species of bacteria moving through a variety of microfluidic channels, the researchers discovered that bacteria navigated through the spaces not based on their own sizes or proportions, as the researchers had imagined, but instead depending on the kinds of spaces they were navigating through. Credit McGill University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.