Part 1: The Coddling of the American Dog This is a story about dog nuts. Testicles, if you want to be scientific about it, those fleshy little sacs, plums in panty hoes that half of dogs are born with but mostly, these days, get snipped. It's also a story about the relationship between dogs and humans, a bond that has existed since the first wolves dared to edge near our ancestors' fires, hoping for cave scraps.