When we domesticated animals, we forever altered how they respond to their environment. We reduced their sensitivity to things that are otherwise very upsetting to their wild relatives - like interacting with us. The side effect of this is that domesticated animals are predisposed to being happier than their wild counterparts, in spite of captivity.

When we domesticated animals, we forever altered how they respond to their environment. We reduced their sensitivity to things that are otherwise very upsetting to their wild relatives - like interacting with us. The side effect of this is that domesticated animals are predisposed to being happier than their wild counterparts, in spite of captivity.