Again, let’s not rush ahead too quickly.
Now we have a very reasonable situation whereby the chickens that are the worst flyers get eaten (just like the bear eats the slowest runner) so all the bad flyers are taken out of the gene pool. Just as all the dogs who are bad climbers are taken out as well.
Leaving, obviously, chickens that can fly better than was the norm and dogs that can climb better than was the norm. So it’s not difficult to see what happens as this arms race continues.
If we wanted to breed a chicken that could fly better than your average chicken, we would simply take out the bad flyers and breed the ones that were left. That would be done with a purpose, but in nature, there is no purpose. The dogs aren’t intentionally taking out the bad flyers in order to increase the ability of the remaining chickens to fly better. They are simply removing the bad flyers because they are easierto catch.
Over very many generations, how do you see this progressing, Techno? And bear in mind that there has been no change in species. We still have chickens and dogs.