| They isolated a pheromone that female German cockroaches use to attract males. |
| The pheromone has been partially purified and consists of several related molecules similar to hydroxylated fatty acids. |
| Other oil fractions showed additional effects, blocking pheromone reception or narcotising and intoxicating animals. |
| Half of the group added the odorless pheromone to their preferred perfume, the other half added a placebo. |
| A simple plug-in diffuser that disperses a dog appeasing pheromone into the room is available at some veterinary practices. |
| This prompted us to test whether any of these proteins could rescue the mutant insensitivities to pheromone. |
