Sex

A bilaterally gynandromorphic green honeycreeper near Manizales, Colombia. 

This 'Extremely Rare' Bird Is Half Female, Half Male

The green honeycreeper is only the second of its species ever observed with this condition—and the first recorded in more than 100 years

The premier lady of sex work in Victorian St. Louis built an empire estimated to be worth at least $100,000—the equivalent of about $3.7 million today.

The Formerly Enslaved Black Bordello Queen Who Built a Notorious Business Empire

In 19th-century St. Louis, Madam Priscilla Henry earned a life-changing fortune—and scores of enemies vying for her crown

When erect, the penises of male serotine bats are seven times longer than female bats' vaginas and seven times wider than the females' vaginal openings.

This Bat Uses Its Extra Long Penis Like an Arm While Mating

Serotine bats are the first mammals known to mate without penetration, new research suggests

Researchers think that this pendant could be the oldest known depiction of a penis—and early evidence of humans' ability to think symbolically.

Is This the Earliest Known Phallic Art?

Researchers think the 42,000-year-old artifact was carved from graphite to resemble a penis

On May 25, 1977, a fire at the Everard Baths in New York City killed 9 people and injured 12 more.

Before It Burned Down, This Bathhouse Served as a Haven for New York City's Gay Community

For decades, gay men gathered anonymously at the Everard Baths, seeking sexual liaisons and camaraderie alike

An illustration of Anthony Comstock, published in Puck magazine in 1906

The 150-Year-Old Comstock Act Could Transform the Abortion Debate

Once considered a relic of moral panics past, the 1873 law criminalized sending "obscene, lewd or lascivious" materials through the mail

Masturbation may help reduce STIs and increase fertilization in male primates.

Male Primate Masturbation May Have Evolved to Prevent STIs

The behavior originated some 40 million years ago to improve breeding success and protect against pathogens, according to a new study

A Babylonian clay model dated to 1800 B.C.E. shows a nude couple on a couch engaged in sex and kissing.

Humanity’s First Recorded Kiss Was Earlier Than We Thought

Ancient texts suggest romantic smooching, and likely the diseases it transmitted, were widespread in Mesopotamia

Mammoth and elephant tusks are elongated incisors, so they're made of the same materials as other teeth.

Male Woolly Mammoths Had Testosterone-Fueled Aggressive Episodes

By studying preserved tusks, scientists suggest the mammals experienced a yearly condition known as musth, like male elephants do today

Lab-raised cockroaches adapted to maintain their glucose-focused sex lives while still avoiding sugary baited traps set by humans.

Cockroach Sex Is Evolving in Response to Pesticides

A new study highlights the insects' resiliency in spite of human attempts to kill them

Northern quolls are the smallest of Australia's four quoll species.

Too Much Sex and Too Little Sleep Can Kill These Endangered Marsupials

A study finds male northern quolls forgo rest to travel up to 6.5 miles in one night in search of a mate—the equivalent of a human walking 25 miles

Blood donations have dropped around the United States during the Covid-19 pandemic.

More Gay and Bisexual Men Could Soon Donate Blood

Since 1985, federal blood donor restrictions have barred many men who have sex with men from participating

“People always liked and admired Colette, but after [World War I], with this need to consolidate French identity, Colette really becomes a classique,” says Kathleen Antonioli. 

Colette Revolutionized French Literature With Her Depictions of Female Desire

Born 150 years ago this week, the author was known for her incisive portrayals of women's everyday lives

Extinct trilobites called Walliserops trifurcatus may have been among the first creatures on Earth to engage in sexual combat, a new study finds.

This 'Jousting' Trilobite Might Be the First Known Creature to Fight for a Mate

Using a “trident” attached to its head, the arthropod may have competed for sexual dominance 400 million years ago

Researchers found a two-part organ called the hemiclitoris after dissecting a death adder snake.

Scientists Discover That Snakes Have Clitorises

The finding highlights disparities in research on male and female animals

Male great bustard (Otis tarda)

These Giant Birds Might Self-Medicate Their STIs

During the breeding season, great bustards consume two plants that may combat common pathogens

Illustration of Neisseria gonorrhoeae bacteria

Could a Morning-After Pill Prevent Sexually Transmitted Infections?

San Francisco has formally recommended doxyPEP, which works like Plan B but targets STIs

Pro-choice protesters in 1972

The Underground Abortion Network That Inspired 'Call Jane'

A new film offers a fictionalized look at the Janes, activists who provided illegal abortions in Chicago before Roe v. Wade

Andrew Dominik's Blonde doesn't purport to be historically accurate. Instead, like the Joyce Carol Oates novel it's based on, the film seeks to be spiritually faithful to the image Monroe embodied.

Who Was the Real Marilyn Monroe?

"Blonde," a heavily fictionalized film by Andrew Dominik, explores the star's life and legend in a narrative that's equal parts glamorous and disturbing

A bull walks in front of a cow. If they mate, the bull’s sperm will likely cluster together as they swim through the female’s reproductive organs.

Bull Sperm Get by With a Little Help From Their Friends

Traveling together helps the sperm navigate a tricky, sticky migration through a cow's reproductive tract

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