Figure Caption: Images capture and convey perspectives without the shroud of semantics that may limit their understanding. Depicted are three fused Klein bottles. This boundary-free topology illustrates the continuous nature of genes, environment, and development as proposed by Hogben. Figure courtesy of Jos Leys. See article by Crews et al., article S21 in this supplement.
Citation: Frontiers in Zoology 2015 12(Suppl 1):S1