Koalas decimating gum trees Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Contact the authorby Kate Deppeler October 18, 2013 A KOALA population explosion is decimating gum trees at Cape Otway. Unlock full access to Colac Herald - Subscribe today! Subscribe Now Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Tags: Animals, Envrionment, Otways