Leaves were thought to be all koalas needed but video footage shows koalas are thirsty; it is believed climate change is transforming the national icon's behavior, adding to stresses from heatwaves, tree-felling and disease.
Professor Simon Chapman says a ruling by the Victorian Civil and Administrative Tribunal could make a drug used in assisted suicide more accessible for terminally ill patients.
Run every two years, the Tropical Wildlife Biology field trip takes students to the Northern Territory and into the natural habitat of lizards, crocodiles and snakes - lots of snakes.