Image of the Day: Spider Sex
Image of the Day: Spider Sex
Funnel-web spiders change the timing of their distinct courtship behavior depending on what microbes they’re carrying.
Image of the Day: Spider Sex
Image of the Day: Spider Sex

Funnel-web spiders change the timing of their distinct courtship behavior depending on what microbes they’re carrying.

Funnel-web spiders change the timing of their distinct courtship behavior depending on what microbes they’re carrying.

copulation
Image of the Day: Monkey Business
Image of the Day: Monkey Business
The Scientist Staff | Jan 10, 2017
For the first time, researchers have documented interspecies sexual behavior between a male Japanese macaque and a female sika deer.
Guppie Porn
Guppie Porn
The Scientist Staff | Jul 31, 2016
Biologist Carin Bondar delivers a TED talk about the wilder side of sex.
Ancient Sex
Ancient Sex
Sandhya Sekar | Oct 19, 2014
Fossils of an extinct, armored fish challenge current understanding of when copulation and internal fertilization evolved in jawed vertebrates.
Sex in a Scanner
Sex in a Scanner
Rina Shaikh-Lesko | Jun 30, 2014
Meet Pek Van Andel, who conducted the famous MRI sex experiment, and see his research in action.
Slippery Passion
Slippery Passion
Bob Grant | Jun 30, 2014
Observe the sinuous sensuality of mating brook lampreys (Lampetra planeri).
Spineless Sex
Spineless Sex
The Scientist Staff | Jun 30, 2014
Not to be outdone by vertebrates, invertebrates employ a suite of interesting structures and behaviors to accomplish procreation.
Speaking of Sex
Speaking of Sex
The Scientist Staff | Jun 30, 2014
July 2014's selection of notable quotes
A Rock and a Hard Place
A Rock and a Hard Place
Bob Grant | Jun 30, 2014
Meet the retired chemical engineer who has made quite the impression on paleoentomology by uncovering ancient secrets of insect coitus.
Size Matters
Size Matters
Tracy Vence | Jun 30, 2014
The disproportionately endowed carabid beetle reveals that the size of female—and not just male—genitalia influences insemination success.