Not all flowers smell sweet. In fact, some have such a terrible odor that the plant itself is named after the stench. The corpse lily, for example, gives off the scent of rotten meat, which is hardly appealing to the human nose. In truth, that's the entire point. The corpse lily gives off this foul odor because it's trying to attract flesh flies and carrion beetles. Since these insects lay their eggs in rotting flesh, they're attracted to the scent. When they come to visit, they fertilize the corpse lily the same way that bees pollinate roses.