Scientists are not sure why this frog is endangered, but they do not think it is droughts or that humans have changed too much of the wild places where they live. This is because Australia made laws protecting the frogs' home in 1988, but there are still fewer and fewer of them. Scientists say one reason this frog is endangered is because pigs that have run away from people run through their streams and kill adult frogs. This frog can catch the fungal disease chytridiomycosis.