Also, subliminal strategies are not only the province of human beings. They occur throughout nature and the animal kingdom. When frightened or angry cats puff up their fur and arch their backs to appear larger, or when a butterfly evolves a design on its wings that looks like a large pair of eyes (hence discouraging some predators), when small birds and fishes fly or swim in large groups that mimic the appearance of a much larger creature, when animals in oestrus release pheromones to excite and attract mates…even when trees wrap up their seeds in deliciously sweet pulpy packages (that we call ‘fruits’) to encourage other animals to eat them and then excrete the seeds in other locations…
all of those are evolutionarily-adapted subliminal strategies to manipulate behavior.