SHE knows it. He knows it. Those two mice are definitely hitting it off. Now odour receptors found in the noses of mice seem likely to be a family of pheromone receptors, offering a clue as to how the mice know it. Humans might have the same receptors.
Pheromones are well characterised in several species, as are human pheromone effects, such as the way that bodily secretions can influence moods or the menstrual cycle. However, just how animals detect pheromones and what their molecular make-up is remain unclear.
The new family of receptors, called trace amine-associated receptors (TAARs), are structurally…
