this is a space faring species I had thought of. the different looks between male and female of the species. women are generally taller by like a full foot at most and same height at the least.

the idea behind this species is that there is one that is chosen who becomes the protector of the planet. as they grow stronger they being to swell up bigger and rounder and eventually kind fo gain new abilities like flight or immunity to space. once they get large enough the people move onto their chosen to live life again.

the idea is that, their original planet was destroyed, so the deity that blessed them allows the chosen to become their new planet while a new chosen grows to become the next planet for them to live on.