Why are growling grass frogs endangered?

Growling grass frogs are endangered for many things.

First of all, human activity. We have been ruining their habitat forcing them to adapt and to keep on moving and to add on to that, our pollution.

Second disease. There was a disease introduced with a creature name Gambusia (mosquitofish). This creature preyed on the Growling Grass Frogs eggs and eventually killed them all.