[blockquote]Breeds like CO, CAO and Sarplaninac, simply know what their duty is, it is written in their gene codes. The dogs that can't bond are eliminated from the pack as pups, or simply stay at home as guardians.[/blockquote] Aleksa, Yes, it is written in their gene codes, and those who fail to bond will of course NOT be used to guard the flock. However, if you look at my example again; ALL three of them could work well as livestock guardian dogs, but still nr.1 is a bit better than the other two. That does not mean that nr.2 and nr.3 will be killed by the shepherd. Not all LGDs are equal, some are better than others. I would assume that those who are excellent, very good and even good are used......while the poor and catastrophic dogs will get another job. I didn't understand "It doesn't work that way recercare". What did I say that didn't work? I respect your view about choosing nr.3 for breeding, I just disagree with your choice. :)