arthronaut
n.— «The prototypes currently in orbit are roughly a third the projected size of a final Bigelow space module and do not yet contain any form of life support. The arthropod crew of Genesis II—which the company refers to as their “arthronauts”—lives in a specially designed, pressurized “biobox” containing a variety of food, a water-retaining gel and a special system for cleaning out animal waste.» —“Second space ‘hotel’ model launched” by Heidi Ledford Nature July 2, 2007. (source: Double-Tongued Dictionary)
Further reading
If someone’s got melon, it means they’re smart. The expression most likely arose because of the resemblance between a melon and a human head. Several other foods are associated with having brains, including a cabbage, a gourd, and even a...