Heath goanna digging for food (VIDEO) University of Cambridge This video is under embargo. Please login to access this video. Caption The heath goanna is an endangered species of giant lizard native to the heathlands of southern Australia that can grow up to a metre and a half in length. It feeds on the dead carcasses of other animals, as well as catching live animals. Credit Tom Jameson Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.