Males and females look pretty similar except during the breeding season, when the most conspicuous difference is a swollen gland around the male's vent. This gland produces the spermatophore, which carries a sperm packet at its tip. The courtship happens on land. After the male becomes aware of a potential mate, he confronts her and blocks her path. The male deposits his spermatophore on the ground. Reproduction occurs by means of this spermatophore, which will be taken up by the female. Their gills develop lungs. Neotenic fire salamanders have not been observed.