Fig. 2From: Offspring reaction norms shaped by parental environment: interaction between within- and trans-generational plasticity of inducible defensesReaction norms of offspring phenotype (G2) according to parental (E1) and offspring (E2) environments for a crawling-out behaviour, b weight, c shell thickness and d ratio shell length / shell width. White circle and dashed line show reaction norms of offspring from control parental environment. Black circle and solid line show reaction norms of offspring from predator-cue parental environment. Significant TGP and WGP are showed by grey arrows and asterisk (*) respectively (see Table 1 & Additional file 3)Back to article page