Small springtail (IMAGE) Aarhus University Caption Springtails come in many shapes and sizes - and there are more than 9,000 different species. And these are just the number of species we have discovered. The researchers estimate that there exist twice as many, if not more, species of springtail. Credit Andy Murray / Wikimedia Commons Usage Restrictions Credit must be given to the creator. License CC BY 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.