Ovulatory shift hypothesis
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The ovulatory shift hypothesis asserts that human women experience evolutionarily adaptive changes in subconscious thoughts and behaviors related to mating during different parts of the ovulatory cycl
Female baboons and many other primates experience sexual swellings that advertise their fertility during estrus. Humans do not display any such obvious physical signals of fertility, but may still experience a subtle estrus-like state.
Hormonal changes across the ovulatory cycle. Researchers hypothesize that changes in estradiol (blue) and progesterone (black) primarily drive changes in mating-related thoughts and behaviors.
Female humans and other primates find faces with high levels of symmetry and masculinity more attractive, especially at high fertility.
Sexual attraction
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Sexual attraction is attraction on the basis of sexual desire or the quality of arousing such interest. Sexual attractiveness or sex appeal is an individual's ability to attract other people sexually,
Ovulatory shift hypothesis
…study to be more assertive and independent during the fertile phase. The ovulatory shift hypothesis proposes that women at high fertility should be most attracted to short-term sexual partners with physical and behavioral features that likely signal genetic fitness, or good genes. But the research reported above…
The Flirtation (1904), by Eugene de Blaas
A male peacock attracts females with a courtship display.