A large-scale population metagenomic study has shed new light on the spatial heterogeneity of viral communities across the gastrointestinal tracts of ruminants, which are closely linked to human history. The team, led by Prof. Tan Zhiliang from the Institute of Subtropical Agriculture of the Chinese Academy of Sciences, demonstrates that the gastrointestinal tract region, rather than ruminant species, is the primary factor that distinguishes viral communities. Their findings were published in the Journal of Advanced Research on January 6.