… but it can teach a wolf.
[…] dogs didn’t learn from each other as easily as wolves learned from them. Dogs lost their power to pay attention to each other when we bred them to pay attention to us.
The domestication of dogs by human beings is easily one of the most compelling examples of evolution at work (through human selection, in this case). If human beings can do this over just a few generations, why is it so hard to believe that our astoundingly diverse nature and a few billion Earth years can lead to the emergence of millions of species?