Evolution being true implies that descendants of parents with some essence will usually, but not always, have the same essence.
That’s all. As you can see, just one tiny modification to one application of Aristotle’s metaphysics is necessary.
obviously doesn’t follow.
Evolution doesn’t “affect” any members of a particular species.
As far, as they’re concerned, they simply get conceived (with or without mutations), reproduce, die.
Their offspring differs from them? So, it does. That doesn’t “affect” the parents. It is so different that it belongs to a different species, has different essence? That still doesn’t “affect” the parents. Nor does that “affect” their species.
No. In such case “species” did not really “evolve” into anything.
Sure, it is often convenient to use such “abuse of notation”. But one should not forget that it is indeed the “abuse of notation”.
On the other hand, “species evolved from another species” is much less of an “abuse of notation”.
Sure. Unless you want to forget that you are dealing with “abuse of notation”.