This is certainly a lovely tale. “But the stark reality is that there’s no clinical proof for one thing called a pheromone,” claims Richard Doty, whom studies odor and flavor during the University of Pennsylvania.

This is certainly a lovely tale. “But the stark reality is that there’s no clinical proof for one thing called a pheromone,” claims Richard Doty, whom studies odor and flavor during the University of Pennsylvania. Bacteria could be the solitary...