Caravelles are giant herbivorous reptiles. They are able to produce helium to float by consuming a specific type of algae. On Aldebaran-4 they are always kept hitched at airstops so that the helium they produce can be harvested. The extraction process is not deadly to the caravella.
Notes
- The official website lists their height at 60m, their length at 27m, and weight at 60 tons.