Dr. Jiangchao Zhao is a professor in the Department of Animal Science, University of Arkansas, Fayetteville, Arkansas, USA. He earned his BS and MS in plant pathology at the China Agricultural University. He completed his PhD in Environmental Microbiology at the University of Wisconsin, Madison, in 2009. His research focuses on the human and animal microbiome, the collection of all the microorganisms in a specific niche (e.g., the gut microbiome), which plays essential roles in different aspects of human and animal health. He has published 100 papers, including several high-impact papers in top journals such as PNAS, Current Biology, Microbiome, ISME journal and Gut Microbes related to the human gut microbiome in healthy aging and swine gut microbiome in animal production. He serves as an Associate Editor for the Microbiome journal and the Animal Microbiome journal. He has been invited to give numerous keynote talks for many national and international conferences.