Rabbit (image) University of Queensland Share Print E-Mail Caption Invasive species like rabbits are the number one problem affecting Australian threatened species, based on the number of species affected. Credit Hugh McGregor/Arid Recovery Usage Restrictions Only to be used with this story. Must be credited. Share Print E-Mail 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.