How do you explain it?

[dogscoff]

I really hope SEV's modding options are flexible enough to allow us to mod in pre-space or early-space "primitives" that advanced players can either "uplift" or exploit.

There was a long thread about it a few years back, and even a prototype mod (primitive proportions mod IIRC- and great fun it was too.)

Can't be arsed to find the thread myself, but I believe a forum search for "yub yub" should locate it fairly accurately.