Depends on what you consider porn. Vision is one of the most dominant senses if not the most dominant sense to humans. In other animals this isn’t so. So porn could be a smell or a sound to other species. And these sounds and smells, especially pheromones , are def used in breeding programs across the board. That being said if these techniques are applied outside said animals natural breeding cycle you are wasting your time and confusing the animal. So not as effective all the time as in humans but can be effective at the right time for sure
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