Exclusive homosexuality is not very common in nature. Frans de Waal More Quotes by Frans de Waal More Quotes From Frans de Waal The whole reason people fill their homes with furry carnivores and not with, say, iguanas and turtles, is because mammals offer something no reptile ever will. They give affection, they want affection, and respond to our emotions the way we do to theirs. Frans de Waal emotions will people way If you look at human society, it is very easy, of course, to compare our warfare and territoriality with the chimpanzee. But that's only one side of what we do. We also trade, we intermarry, we allow each other to travel through our territory. There's an enormous amount of cooperation. Frans de Waal look you society travel Chimps cannot tell us anything about peaceful relations, because chimps have only different degrees of hostility between communities. Whereas bonobos do tell us something; they tell us about the possibility of having peaceful relationships. Frans de Waal relationships something tell peaceful Very long ago our ancestors had moral systems. Our current institutions are only a couple of thousand years old, which is really not old in the eyes of a biologist. Frans de Waal old eyes moral long