Twin Babies (IMAGE) University of Melbourne Caption Over the last 40 years, multiple births in Australia have almost doubled with 9056 multiple-births in 2017, compared to 4740 in 1975. Credit Donnie Ray Jones, Flickr Usage Restrictions Credit: Donnie Ray Jones, Flickr License Licensed 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.