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A tomography image in greyscale of snake tissues
Snakes Have Clitorises After All, Study Finds
Researchers visualize the snake clitoris in detail for the first time, finding evidence that the organ may be evolutionarily important for snake sex.
Snakes Have Clitorises After All, Study Finds
Snakes Have Clitorises After All, Study Finds

Researchers visualize the snake clitoris in detail for the first time, finding evidence that the organ may be evolutionarily important for snake sex.

Researchers visualize the snake clitoris in detail for the first time, finding evidence that the organ may be evolutionarily important for snake sex.

penis

Larger Hermit Crab Penises May Prevent Shell Theft
Abby Olena, PhD | Jan 16, 2019 | 4 min read
Members of species with shells they must hold onto for survival have larger sexual tubes than those with less precious private property.
Military Veteran Receives “Most Complex” Penis Transplant Yet
Ashley Yeager | Apr 24, 2018 | 2 min read
After losing his genitals in a roadside bomb explosion, the soldier endured a 14-hour surgery to have a donated penis, scrotum, and partial abdominal wall attached.
Cave Creature Genitalia, Other Weird Discoveries Net 2017 Ig Nobels
Shawna Williams | Sep 15, 2017 | 2 min read
In one winning paper, scientists describe an insect whose females have evolved a penis-like appendage that penetrates males’ “vaginas.”
Image of the Day: This Is Not a Penis
The Scientist | Aug 29, 2017 | 1 min read
Scientists encountered a marine worm strikingly reminiscent of a human phallus, along with other bizarre creatures, while exploring deep seas off of the Australian coast this summer.
First US Penis Transplant
Tanya Lewis | May 16, 2016 | 2 min read
A man who lost his penis due to cancer has received the organ from a deceased donor.
Evolution of the Penis
Kerry Grens | Oct 30, 2015 | 1 min read
A phallus-less reptile goes through a developmental stage with external genitalia, suggesting a common origin for the organ among amniotes.
Penis Transplant a Success
Kerry Grens | Mar 16, 2015 | 1 min read
Surgeons expect an organ donor’s penis given to a man who lost his in a botched circumcision to become fully functional.
Duck, Duck, Goose!
Patricia L.R. Brennan | Jun 30, 2014 | 1 min read
Check out the remarkable explosive eversion of the duck penis.
Parsing the Penis Microbiome
Tracy Vence | May 28, 2014 | 3 min read
Circumcision and sexual activity are but two factors that can influence the bacterial communities that inhabit male genitalia.
Why Many Birds Don’t Have Penises
Kate Yandell | Jun 7, 2013 | 2 min read
In avian species, a gene induces programmed cell death during development in the area where a phallus would otherwise grow.
Circumcision Alters the Penis Microbiome
Kate Yandell | Apr 18, 2013 | 2 min read
Diminished bacterial diversity and abundance may help explain why circumcision is associated with reduced HIV infection.
Penises: The Bigger the Better?
Kate Yandell | Apr 9, 2013 | 2 min read
Female preference may have driven the evolution of human males’ relatively large genitalia.
Penis Size Matters for Golden Moles
Kate Yandell | Feb 21, 2013 | 2 min read
Female golden moles are more likely to choose a mate with a longer reproductive organ.
The Detachable Penis
Dan Cossins | Feb 14, 2013 | 1 min read
A species of sea slug discards its penis after mating, then grows another the next day, a tactic that may have evolved to avoid passing on the sperm of competitors.
 
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