Meet the ecologist trying to save the koalas. Maria Matthes, a lifelong koala conservationist, says loss of habitat and climate change have threatened koalas in eastern New South Wales. Almost 2 million hectares of forests suitable for endangered koalas have been destroyed since 2011. Koalas are one of more than 2,000 Australian species listed as under threat in what scientists are calling an extinction crisis. In the absence of sufficient funding and action by the government, passionate individ