Robuta

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0144985 Male Courtship Pheromones Induce Cloacal Gaping in Female Newts (Salamandridae) | PLOS One Pheromones are an important component of sexual communication in courting salamanders, but the number of species in which their use has been demonstrated with... plos onemalecourtshippheromonesgaping https://www.caudata.org/ Caudata.org: Newts and Salamanders Portal Newts and Salamanders Information for hobbyists, pet keepers, researchers and scientists. newtssalamandersportal