Fig. 5

Bar charts showing A the proportion of evidence syntheses that examined inter- versus trans-generational inheritance (please also refer to Fig. 1), B if the terminology referring to non-genetic inheritance matched our definition provided in Fig. 1, C the type of environmental exposure, D the mode of transmission (i.e., through the matriline or patriline), E the timing of F0 (ancestral) environmental exposure, F the type of descendant traits, G the sex of descendants, and H the expected ‘direction’ of environmental effects on offspring (i.e., if the environment is expected to have a positive/beneficial effect or negative effect on offspring). Light grey bars represent the number of articles that did not clearly fit into any of the other categories (i.e., “unclear”)