There is no comparison to how society operates. We are talking about nature. If you were a dog and needed food, would you eat the chickens that were easy to catch or the ones that were difficult? It’s an easy answer as I’m sure you’d agree. It’s literally the survival of the fittest.
So don’t head off and try to work in social Darwinisn. We are talking just dogs and chickens. No hidden philosophical meanings here.
And I’m pretty sure that you know where the arms race between these two creatures might end up. With dogs that are much better climbers than their ancestors and chooks that can fly a lot better than theirs.
Now there is nothing I have said at any point that is any way unreasonable or can in any way be described as speciation. It is STILL dogs and chickens.
Do you abree?