You can smell someone's gender, says science

Now scientists report in the journal Current Biology that people may have that ability as well, even if we aren’t always aware of it. Humans don’t have the same sophisticated olfactory organs as some of our animal counterparts, and while men and women do exude different scents, it’s been harder to confirm that people can pick up on these odors, or that they were working as sex pheromones to attract two people to each other. …

Heterosexual men thought the dots showed a more feminine gait when they were exposed to the female hormone estratetraenol. There was a similar effect among heterosexual women, who were biased to see the dots showing a more masculine gait when they smelled the male hormone androstadienone. Gay men responded more like the women to the two hormones, while bisexual or homosexual women showed more varied responses, between those of heterosexual men and women.

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