It is hard to know for sure if it isn't studied. Environmental pollution can disrupt sexual development in animals. There are a number of chemicals that frogs

It is hard to know for sure if it isn't studied. Environmental pollution can disrupt sexual development in animals. There are a number of chemicals that frogs are sensitive too that mess with their sexual development. Here is the first google hit I can find: https://www.berkeley.edu/news/media/releases/2002/04/15_frogs.html https://www.berkeley.edu/news/media/releases/2002/04/15_frog...