David Attenborough's incredible journey into the world of plants. Flowers are the most eye-catching feature of plants, but they are really there for only one thing - sex. In order to procreate, a male seed fromone flower must be carried to the female parts of another. Flashy colours and lurid perfumes entice a host of animal couriers to collect their rewards. Yet when it comes to attracting pollinators some flowers can be very deceitful.