Fig. 2. The global distribution of threatened tetrapod evolutionary history.

a Threatened tetrapod evolutionary history mapped using summed Evolutionarily Distinct and Globally Endangered (EDGE) scores⁴¹; b a linear regression of global patterns of summed EDGE scores against summed Evolutionary Distinctiveness (ED) scores⁴¹, where warm coloured residuals reflect areas where evolutionary history is more threatened than expected given the summed ED of the region, and cool coloured residuals reflect where evolutionary history is less threatened than expected given the summed ED. Source data are provided as a Source data file.