"He was watching one of Lev’s two thylacine analogs through the kitchen window.…Now it turned, in its uncanine fashion, its vertically striped flank quite heraldic, and seemed to stare at him. The regard of a mammalian predator neither canid nor felid was a peculiar thing."
January 1, 1970
https://en.wikiquote.org/wiki/Jackpot_trilogy