Also notable was Ellison’s 1969 novella A Boy and his Dog, about a mind-reading hound and his human buddy in an post-apocalyptic cannibal future after World War 4. In 1975 it was made into a film with Don Johnson playing the lead role - worth watching if you’re entertained watching an actor trying to emote.
It's an unmemorable film, but I thought the point of the novella is the emotionless 'boy', who [spoiler alert] asked to choose between his dog and his new girlfriend chooses the dog (it doesn't end well for the girlfriend).