Suggestion: BODY EVOLUTION --- Okay, so technically the body of a creature in this evolution engine evolves as its designer adds changes to it, but I would also like to see an option to turn on (or off) the inclusion of body mutations in the breeding process which might move a joint a little bit in some direction, switch an attribute on or off such as EXTRA SOLID on a bone, or "UNBENDABLE" on a joint. One such change should not make the resulting offspring structurally incompatible with other offspring of sufficiently similar creatures, so the body could then be included in what's inherited and perhaps exchange "genes" when reproducing in a similar way to what's currently done with the neural networks.