How Do Cockroaches Release Pheromones?
WouterWhen a female cockroach feels lustful or sexually active, she releases an amorous pheromone. Scientists have tried to create synthetic versions of this scent, but to no avail. Scientists now want to understand exactly how cockroaches release this chemical and how it works to attract males.
In one experiment, scientists gave cockroaches identical food choices. This way, they would be evenly distributed. The cockroaches preferred one food source, but when it ran out, they switched to the other. This way, cockroaches could spread information about food sources and chemical sources through their close contact with each other.
Cockroaches have chemoreceptors in their antennae that detect a particular smell. They use these chemoreceptors to find food, and the odor is a strong signal to other cockroaches. They also release a distinct smell when they die, which alerts other cockroaches to a possible new home.
Cockroaches also release pheromones to attract mates. These chemicals are odorous, and they can be extremely unpleasant. Cockroaches release them in their feces, where they attract other cockroaches. Because cockroaches live in dark, moist environments, they also emit a pungent smell.
Although cockroaches are able to resist nearly 900 times their own weight, they can still survive being squashed. Cockroaches often live outdoors and in sewers. During the day, roaches stay hidden in crevices, and spend most of their time at night. They mate at night and forage for food.
