Editing Sexual differentiation (section)

=== Socially-determined ===
In some species, such as sequentially hermaphroditic [[Amphiprioninae|clownfish]], changes in social environment can lead to sexual differentiation or sex reversal, i.e. differentiation in the opposite direction.<ref name=":13"/> In clownfish, females are larger than males. In social groups, there is typically one large female, multiple smaller males, and undifferentiated juveniles. If the female is removed from the group, the largest male changes sex, i.e. the former gonad tissue degenerates and new gonad tissue grows. Furthermore, the pathway of differentiation is activated in the largest juvenile, which becomes male.<ref name=":13" />