If anyone actually reads the article, the authors of the study believe it may be a result of pollutants (specifically, a build up of hormone-disrupting chemicals in wild areas) and/or climate change.

The cause still isn’t clear; however, other studies have found the same thing occuring in other species at higher rates due to environmental factors:

Scientists have documented how pollutants and even warm temperatures can trigger sex reversal in frogs.

Bob. Bob has bitch tits.

Wait until Alex “They’re turning the frogs gay!” Jones hears about this one.