Long ago in Earth’s history, individual cells began to communicate and coordinate with one another. Thanks to this and a few billion years of evolution, humans can now gather in lecture halls to share ideas about how to study this communication and its wide-ranging implications.MSU scientists Lee Kroos and Yann Dufour now have a paper, published online Nov. 5 in the Proceedings of the National Academy of Sciences, in which they took a deep look at how single cells work together to choreograph collective behavior. In particular, the team looked at a bacterial species known as Myxococcus xanthus to tease out the basic rules of the dances bacteria do to survive, thrive and impact humanity, for better or worse.