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By modulating wing beat frequency, and thus light flash frequency, the flies effectively communicate to their peers their sex, age, and possibly even mating status.
Here, we show that there were no significant relationships between type of marriage and the total number of alive children and number of dead children among the three sampled groups.
The presented study is the first to date to examine the fitness benefits of free mate choice in humans.
According to the researchers, the ability to distinguish between different light flash frequencies suggests that green bottle flies have numerical competence even approaching the level of mammals, birds and fish.
In this study, the researchers mounted two live females side by side; only one had fully functional wings, while the other’s wings were immobilized.