Fig. 3

(A) Cladogram showing all species included in the EIPAAB database. All classes with more than one species are shown in distinct colours (those with a single species are light grey). The numbered labels 1–15 represent each of the top 15 species represented in panel C. (B) The 15 most common taxonomic classes in the evidence database. The colours are unique to each phylum and apply across both plots A and B. (C). The 15 most common species used in articles within the evidence database. The percentage value given under the species name is the percentage of total articles, and the counts within the plot are the number of articles for each species by study motivation (Basic research = blue, Medical = pink, Environmental = green, in that order). The open circles are cases of zero articles. The accompanying species images indicate the first occurrence of a distinct taxonomic class in the top 15 species (i.e. Actinopterygii [1st ], Branchiopoda [2nd ], Amphibia [12th ], and Cephalopoda [14th ])