>>18873072In this image you can see that shroomish starts like a fungus pouch carrying the fetus. Given that the growth of fungus simulates the morphology of neural webs, the shroomish achieves a transfer of his conscience into the fetus encephalus (or, maybe, given the symbiotic evolution, the fetus no longer develops a brain and is born anencephalic, in order to give the fungus a confortable adaptation space). Eventually the fetus grows and the fungus starts to adapt its shape around the anatomy of the kangaroo-like new species, growing with it as if it was a single being (actually, if you see it from the conscience perspective, or the unity of a nervous system, it's one being), finally you end up with a breloom.
