We would like  to bring to your attention a new Frontiers in Microbiology research topic on: Advances in the understanding of the commensal eukaryota and viruses of the herbivore gut. The topic is also a tribute to the tremendous contributions of the late Professor Burk Dehority and Professor Colin Orpin to the field of herbivore gut microbiology. The topic is open to all type of herbivores – not just mammalian. For further details please see here.