(A) Map of N. furzeri distribution across its entire range overlaid on a gradient of aridity (wet to dry: blue to red) and with the proportion of male colour morphs visualised by pie charts and the geographic distribution of intra-specific clades delineated by black lines. (B) Adult yellow morph male, (C) red morph male, and (D) female N. furzeri. (E) Embryo at diapause II, representing the longest interval of its lifespan in natural habitats. (F) Embryo at diapause III, fully developed and awaiting hatching cues. (G) Simplified schematic phylogeny of the Southern clade of Nothobranchius, with details on N. furzeri intra-specific lineages (simplified from Bartáková et al., 2015). Image credits: Martin Reichard (1A, 1G), Radim Blažek (1B–1D), Matej Polačik (1E, 1F).