Balloon Drifters are an inflatable species that were native from Mars at some point in that planet's past, when it was far more inhabitable. They move around by filling their bodies with air and expelling it in order to propel them through midair. Categories: Non-Sapient Species Mars Inhabitants Mars and Beyond Universe 1957 Debuts Animated Species TV Species Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.