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. 2023 Oct 4;622(7982):308–314. doi: 10.1038/s41586-023-06578-4

Fig. 1. The distribution of 2,873 globally threatened amphibian species.

Fig. 1

The darker colours correspond to higher species richness. The colour scale is based on 10 quantile classes. Maximum richness equals 61 species. The cell area is 865 km2. One species was excluded because no spatial data were available.