The evolutionary struggle for survival is really a self-serving series of blows and stabs, and yet it can lead to extremely social animals like dolphins, wolves or, for that matter, primates.
Frans de WaalI am personally not against keeping animals at zoos, as they serve a huge educational purpose, but treating them well and with respect seems the least we could do, and with 'we' I mean not just zoo staff, but most certainly also the public.
Frans de WaalIt wasn't God who introduced us to morality; rather, it was the other way around. God was put into place to help us live the way we felt we ought to.
Frans de WaalStudies of reconciliation in primates have demonstrated that if the relationship value increases between two parties they are more willing to make peace.
Frans de Waal