Originally Posted by
Kacaier
Well, I'm sure lorifically (that's a word now!), Zerg would respond to enemies very dynamically in their evolution. Not like Zerglings to Baneling, as the story that introduced them had that take some time. But I mean responding to different threats with pre-existing DNA. Maybe if they need larger mutalisks for heavier damage, or smaller mutalisk for more agility.
Likewise, I'm sure different Zerg broods (if different broods still exist), would prefer different attributes.
Overall, this is all me guessing. :p