Figure 4. The abundance of microbes that changed with CR in B6D2F1 mice. The relative abundance of the 27 microbes that changed significantly in B6D2F1 mice are shown for old mice fed AL (O-AL) or CR (O-CR). The microbiome data are presented on the basis of family (A), genus (B), or species (C) of the microbes found in either the cecum or colon of the mice.