Sex

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

Attorney Gloria Allred (left) and Norma McCorvey (right), the anonymous plaintiff in Roe v. Wade, during a pro-choice rally in Burbank, California, on July 4, 1989

Who Was Norma McCorvey, the Woman Behind Roe v. Wade?

Dubbed "Jane Roe," McCorvey sought an abortion after becoming pregnant in 1969 but was thwarted by Texas' restrictive reproductive laws

Members of the Janes in 1972

When Abortion Was Illegal, Chicago Women Turned to the Jane Collective

A new documentary spotlights the group that helped thousands seeking abortions in the 1960s and '70s

In 1547, Elizabeth's brother, 9-year-old Edward VI, ascended the throne. Then 13 years old, the princess found herself second in line to the crown.

The Royal Scandal That Rocked Elizabeth I's Teenage Years

A new Starz series, "Becoming Elizabeth," dramatizes the future queen's controversial relationship with her much-older stepfather, Thomas Seymour

The book included reader-supplied recommendations for clubs and baths in countries such as South Africa, Yugoslavia and Panama. Two-thirds of the 1965 edition, though, were devoted to the U.S.

Where Could Gay Men Dine in the 1960s South? This Coded Guide Held the Answers

For locals and tourists alike, the "International Guild Guide" identified places of refuge in a ruthlessly homophobic society

Li Shiu Tong and Magnus Hirschfeld at the 1932 conference for the World League for Sexual Reform

The Gay Asian Activist Whose Theories on Sexuality Were Decades Ahead of Their Time

In the 1930s, Li Shiu Tong's boyfriend, Magnus Hirschfeld, was a prominent defender of gay people. But Li's own research has long been overlooked

At a time of widespread public health crises and evolving ideas about how illnesses spread, kissing was an easily avoidable vector of disease. Unfortunately for Imogene Rechtin, most people proved unwilling to give it up.

The Woman Who Fought to End the 'Pernicious' Scourge of Kissing

New understandings of how disease spread informed Imogene Rechtin's ill-fated 1910 campaign to ban a universal human practice

The archive of written work and speeches delivered by suffragists simply doesn’t indicate that abortion was at the forefront of discussions about women’s rights during the mid-19th to early 20th centuries.

What Did the Suffragists Really Think About Abortion?

Contrary to contemporary claims, Susan B. Anthony and her peers rarely discussed abortion, which only emerged as a key political issue in the 1960s

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Escape From the Gilded Cage

Even if her husband was a murderer, a woman in a bad marriage once had few options. Unless she fled to South Dakota

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