It’s both. It’s insane to me someone can watch animals instinctively display insanely complex behaviors untaught (e.g. herding by australian shepards) and the scientific research to reduce aggression in a related species before coming to the conclusion that there is no way whatsoever that nature is a significant component. Oh, and just completely ignore breeds bred for traits and behaviors seemed desirable for every domesticated animal.

Nature has no place at all it’s only nurture. Sure.