Fig. 1. Substantial prevalence and diversity of Archaea among vertebrates.
a, A dated phylogeny of all host species (n = 110) obtained from http://timetree.org, with branches coloured by host class (purple, Actinopterygii; orange, Amphibia; green, Reptilia; red, Aves; blue, Mammalia). For inner to outer, the data mapped onto the phylogeny are: host diet (general), detailed diet composition (the dendrogram depicts Jaccard similarity of dietary component presence/absence), wild/captive status, sample type and mean per cent abundances of archaeal taxonomic classes among all individuals of the species. b, Number of ASVs belonging to each class. c,d, Number of samples grouped by host class and diet (c) and host class and captive/wild status (d).