" Our mortal knowledge may not be visible in all of our moves, but it shines through in some: we shrink back from the balcony’s edge, from the animal with unknown intent; we buckle up for safety; we look both ways before crossing; we don’t jump in the tiger cage; we refrain from the third serving of fried ice cream; we even entertain not swimming after eating. If dogs know about death, it might show in how they act. I "

― Alexandra Horowitz , Inside of a Dog: What Dogs See, Smell, and Know