When it comes to mating rituals, the animal kingdom has it all. Chimps pound their chests, alligators emit guttural groans, and elk pee on themselves. Humans, it turns out, are not all that different in displaying sex-related behaviours. And we conduct experiments to prove it. In examining courtship rituals, we find that playing footsie is as common among people as it is among seahorses; that humans eyes dilate like tigers when sitting opposite someone we like and that men groom themselves like antelopes and women preen like birds in order to make ourselves more attractive. We learn how and why red is such an important colour in nature and in the human world. We also learn how body odour is one of the most basic primal aphrodisiacs, commonly employed throughout the animal kingdom, from moths to elephants. We humans still rely on our noses in unconscious ways, and we test our theory at a pheromone party, where eligible singles hook up through blind smelling. Viewers get to play along with each of our experiments in a fun, interactive way, while on-camera experts offer play by play, breaking down the science of the compelling experiments that unfold on-screen.