It took me three years to notice this...

[Puke]

very interesting. and the sallega intelectual cast has the same life span (120 years) as the borbora - and they have the same planet / atmosphere type.

borbora history suggests they are intelligent but held back by conflict, which the sallega may have been if they didnt have the worker cast to cater to their every whim. the borbora are also superstitious about the void beyond their home system, perhaps they were isolationists or splitters whos founders created the superstitions to keep them from re-uniting with their parent race.

or maybe the sallega are a group of splitters that left the home system long ago and were forgotten about.

or maybe the borbora are the result of an accident with temporal technology, which the sallega have..

or maybe the artist got lazy, and the lifespan / planet type / atmosphere type are just a coincidence.