Recent posts

Mice, Serotonin, Sexual Preference, And You

A recent study found that male mice are less choosy about the sex of whatever mice they mount when their serotonin levels are low. Male mice that genetically have less of the neurotransmitter serotonin are as likely to mount other male mice as they are to mount female mice, but injecting them with serotonin increases their likelihood of mounting females with greater regularity. So serotonin is clearly linked with sexual preference in male mice in some fashion… but what does this mean for the rest of us? Continue Reading →

Gender And Veterinary Medicine

Animal-lovers, take note: sexism in veterinary schools is waning, but could still affect the decisions of young people hoping to become veterinarians. I found this blog post on gender inequality in veterinary medicine fascinating, and I’m hoping the author’s plea for more compassionate people to become vets–regardless of gender–reaches future vet students. Follow us on Twitter @mysexprofessor. Follow Jeana, the author of this post, @foxyfolklorist. Continue Reading →

Self Loving In The Animal Kingdom

My friend Sarah recently linked me to an article from Live Science on why animals evolved to masturbate. The article includes information beyond just masturbation on ten animals, including monkeys, squirrels, and elephants. A fact that caught my attention was that an elephant penis can be as large as five feet, and is shaped like the letter “S”. Not to leave out the female elephants, the article mentions that a female’s clitoris can be more than a foot long. It also features turtles, and calls their self-lovin’ “rampant turtle masturbation”. Continue Reading →

Do Monogamous Animals End Up With Unattractive Partners?

That’s what Jennifer Viegas explores over at today, as she describes work in different animal species. And work in birds suggests that certain female birds who wind up with less attractive/less ideal mates end up with higher levels of stress hormones, pointing to the need to consider stress in relationships in more nuanced ways. It’s an interesting article and worth the read. [Discovery, hat tip to @GuyKawasaki] Continue Reading →

Femmes Holding Animals

Femmes couldn’t let the butches have all the fun so a Femmes Holding Animals Tumblr was recently started to host pics of sexy femmes holding their adorable pets. There aren’t many contributions yet, but hopefully this blog will take off with the same enthusiasm that Butches With Cute Animals has. So go check it out and submit your pics. After all, is there a better way to brighten one’s day? Follow us on twitter @mysexprofessor. Continue Reading →

What’s the Ninja Slug Got to Do With Love?

The Ninja Slug, one of National Geographic’s Ten Weirdest New Animals of 2010 is given its name due to one of its mating behaviors. Specifically, they apparently shoot hormone-laced “love darts” to their mate, kind of like Cupid’s arrows. Or so says Nat Geo. Related posts from MSP about animal mating behavior and/or animal genitals include posts about penile shape, Hawaiian boobies, and the sex lives of snails, slugs, porcupines and other animals. After all, it wouldn’t be fair to focus exclusively on humans given the fascinating sex lives in the rest of the animal kingdom. Continue Reading →

Chromosomes And Other Aspects Of Reproductive Sex

Scientists at UC Berkeley are studying how sex chromosomes in animals can yield information about the reproductive history of a species. From fruit flies (one of the most popular case studies) to emus, each species differentiates chromosomes and assigns genetic information to those chromosomes in a particular way. For instance, the XY pair of sex chromosomes we’re used to discussing in humans is not present in the sexual differentiation of every species. Ideally, comparing animal sex chromosomes across a wide variety of species will help us learn more about the purpose of biological sex. Continue Reading →

Ever Wondered Why Penises Are Shaped The Way They Are?

No? Well, I hadn’t either, until a friend of mine emailed me this article from the Scientific American. According to the article and the research of evolutionary psychologist Gordon Gallup, there are a few reasons why the penis may be shaped like it is. I definitely recommend reading the full article, but in case you’re in a rush, here are a few highlights: Continue Reading →