Solonians were the people of the planet Solos. Seasonal changes on the planet forced mutations of the Solonians from one form to another — specifically from Mad Max Viking chaps, to awesome-looking ant dudes, to beings made of light. This process could also be exacerbated by pollution in the atmosphere.
Podcast C063 The Mutants
Doc delivers a parcel and terraforming turns humanoids into Better-Zarbis, but then it turns out they were destined for greater things all along.