Cockroaches entice females demonstration "muscles"

In order to attract a female, the males Antillean cockroach (Byrsotria fumigata) perform a kind of ritual, demonstrates "bulging biceps."

According to Sci-news, to attract the attention of a future partner, West Indian cockroaches begin to flap their wings vigorously. According to a study carried out the Dr. Sophie Moules from the University of Nottingham, the males with the most vigorous movements had a greater chance of success than their sluggish cousins. And a show of force for the females was even more important than the size of the male.

"Signs of male stamina is definitely important for females as it should be passed on to offspring good genes, so they avoided death and after, in turn, attracted good females" - summarized Dr. Moules.

As an example, a similar ritual among other fauna she brought the Sword-fish Xiphophorus sp., Which the males during courtship actively waving their large tails - this also requires a lot of energy. There is a similar ritual and wolf spiders of the family araneomorphae. To attract females they begin intensive stomping legs - "to play the drum."

Earlier, the scientists also found that cockroaches emit specific "pheromones". The fragrance that is created by intestinal microflora of insects and secreted with feces, cockroaches forces to come together.