121. When Male Mice Cry It Turns Female Mice On

"Crying isn't sexy—unless you're a male mouse. Researchers have found that a previously-identified pheromone in male mouse tears, known as ESP1, makes female mice arch their back, lift their hind region, and stay put when the males approach them to mate. (Female mice not in the mood tend to run away.) Scientists have found mouse pheromones in urine before; pheromones in tears may have evolved because tear fluid lingers in the fur, and female mice often groom the faces of other mice, the team will report tomorrow in Nature. Women don't have the receptor for this pheromone, however, so hold back on those tears for now, guys."

ScienceShot: "Tears Put Female Mice In The Mood."

The article should probably say, scientists have not yet discovered a receptor for the ESP1 pheromone in the human female, rather than that there is no receptor. Frankly, I think a similar phenomenon exists in humans. (See post 104.) Why would evolution discard such a useful trait? And, gosh, isn't this what sensitive metrosexuality is all about? The sensitive metrosexual guy slips in and scores with the girl while the Neandertal is thumping his chest at the frat house.

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