Atrazine-induced feminization documented in:
Feminization associated with atrazine first documented in northern leopard frogs displaying hermaphroditism in contaminated ponds, but subsequent studies confirmed effects across multiple vertebrate classes including fish such as zebrafish and medaka showing oocyte production in male gonads, reptiles altering temperature-dependent sex ratios, birds reducing male behavior, mammals including rats decreasing testosterone. Conserved steroidogenic pathways involving aromatase and estrogen receptors render many vertebrates vulnerable. Broad phylogenetic conservation of estrogen signaling means atraz
Ref: NCBI, Environmental Health: Atrazine feminization documented broadly in vertebrates.