We're beginning to understand the genes behind how men lost their dick spines. In fact, smooth penises are a derived state in humans; many if not most mammals have some level of spikiness or roughness on the penile tissue. We've known that chimps have penile spines since 1944! However, no one's really quite sure exactly why humans lost their spines. [more inside]
Koryos, who previously explained how cats got domesticated using tumblr, now explains why homosexual pair-bonding can be a successful reproductive stratagem. Also, Coot Parenting Tips, Queen Cowbird Of The Brood Parasites , There's No Such Thing As An Alpha Wolf, and Can Animals Have Pets?
The short life of the male marsupial known as antechinus, which always ends due to his body crashing after a multi week testosterone fueled breeding season.
Teaching Cliteracy 101: "It is a curious dilemma to observe the paradox that on the one hand the female body is the primary metaphor for sexuality, its use saturates advertising, art and the mainstream erotic imaginary. Yet, the clitoris, the true female sexual organ, is virtually invisible." ~ Artist Sophia Wallace is using street art and an art exhibition that incorporates pithy slogans, 'scientific data, historical information as well as references to architecture, porn, pop culture and human rights' to make "the case for the clit". (Links throughout this post may be NSFW.) [more inside]
Nature constantly engineers new and creative solutions to all sorts of problems—turning our stereotypes about sex upside-down along the way.
Science is Rewriting the Rules of Reproduction Aarathi Prasad's new book investigates taking sex out of the reproduction equation. [more inside]
Larry Gonick is a veteran American cartoonist best known for his delightful comic-book guides to science and history, many of which have previews online. Chief among them is his long-running Cartoon History of the Universe (later The Cartoon History of the Modern World), a sprawling multi-volume opus documenting everything from the Big Bang to the Bush administration. Published over the course of three decades, it takes a truly global view -- its time-traveling Professor thoroughly explores not only familiar topics like Rome and World War II but the oft-neglected stories of Asia and Africa, blending caricature and myth with careful scholarship (cited by fun illustrated bibliographies) and tackling even the most obscure events with intelligence and wit. This savvy satire carried over to Gonick's Zinn-by-way-of-Pogo chronicle The Cartoon History of the United States, along with a bevy of Cartoon Guides to other topics, including Genetics, Computer Science, Chemistry, Physics, Statistics, The Environment, and (yes!) Sex. Gonick has also maintained a few sideprojects, such as a webcomic look at Chinese invention, assorted math comics (previously), the Muse magazine mainstay Kokopelli & Co. (featuring the shenanigans of his "New Muses"), and more. See also these lengthy interview snippets, linked previously. Want more? Amazon links to the complete oeuvre inside! [more inside]
An article in the June issue of Proceedings of the Royal Society of the Biological Sciences finds that "differences in reproductive strategies are driving individuals' different views on recreational drugs": namely, that views on sexual promiscuity are more closely related to views on recreational drug use than religion, political affiliation or other predictors. The study suggests attitudes against recreational drug use are an evolutionary attempt to promote reproductive stability.
It may increase schadenfreude. It's an assistant to abortifacients and it's produced by stimulating the nipples. Got a clogged lizard? Your mom used it to turn off your brain for your own good. In women, it peaks at orgasm, but in men, it might be elevated throughout sex without peaking. And what do you mean "social" monogamy!? Is it the love 'em and leave 'em hormone?? Well, it's NOT Vasopressin For Her, contrary to what some people think. Is it an impedance to feminism? Could it be the key to treating Autism? Ism... ism... jism? YEP. It's in the jism! Its synthesis was the end of A Trail of Sulfa Research, and its master was awarded the Nobel Prize. (Chemistry, not Peace.) You can scent your loveletters with it, but sorry, peaches... you can't huff a good cuddle, but you might like to huff while you cuddle. Previously.
Carl Zimmer on the duck's incredibly long, corkscrew-shaped, ballistic penis.
My tale is rich with deep scientific significance, resplendent with surprising insights into how evolution works, far beyond the banalities of “survival of the fittest,” off in a realm of life where sexual selection and sexual conflict work like a pair sculptors drunk on absinthe, transforming biology into forms unimaginable. But this story is also accompanied with video. High-definition, slow-motion duck sex video. And I would imagine that the sight of spiral-shaped penises inflating in less than a third of second might be considered in some quarters to be not exactly safe for work. It’s certainly not appropriate for ducklings.[As Carl says, video links are possibly NSFW.] [more inside]
Why music? Music is a human universal, but why did we evolve a desire to create, perform, and enjoy it? From a biological standpoint, does it contribute to survival or, more likely, mate selection and reproduction?
"Because competent mating did not occur," the zoo statement said, veterinarians anesthetized both pandas on Saturday, collected semen from Tian Tian and inserted it into Mei Xiang's uterus. [previously 1 2 3]
Bonobo chimpanzees are commonly thought to be "an example of amicability, sensitivity and, well, humaneness" in the animal kingdom. Ian Parker's Swingers suggests a darker, more savage side to the species that belies popular perception.
Female X chromosome 'cracked' - "The discovery, by an international consortium of scientists, shows that females are far more variable than previously thought and, when it comes to genes, more complex than men." Nature reports two new studies; one on the complete sequencing of the X chromosome for humans, which sheds some light on how sex evolved and how women differ from men, and another on how women express many genes from X chromosomes previously thought dormant.
The story of Ohh! For men it is quick, easy and essential for reproduction. For women, it is slow, difficult and purely for pleasure. Yet despite such differences, it brings the sexes together and is the basis of the monogamy that distinguishes us from other animals. In his new book, Jonathan Margolis examines the phenomenon of the orgasm
Birds do it, bees do it... homosexual attachment and lovemaking are widespread in the animal kingdom, say biologists like Bruce Bagemihl, author of "Biological Exuberance." [For a longer, better-edited version of the same article, go here, but NYT reg. required.] Not everyone agrees, particularly those apt to quote the Bible to justify claims of a "natural revulsion to perverse sex."
This news item turned out to be a hoax. Has Reuters been fooled again? I certainly smell a rat... (I know the original mefi link pointed to the BBC, but the BBC picked it up from Reuters)