And here we thought it was just our big brains: Since diverging from chimpanzees seven-million years ago, human ancestors lost several hundred DNA snippets that led to uniquely human traits—including tactile spines on our penises. Penis spines, like the ones found on chimpanzees, make the penis more sensitive and speed up sex. The loss of penile spines may have helped pave the way for monogamous sex in humans. In the end, it may still all be about our brains: The loss of some DNA may have allowed brains to grow larger.
Unlock a year of full access to The Daily Beast for $35.
Monthly
$1
First monththen $5.99/month
Unlimited access (web + app)
Exclusive ad-free newsletters
Commenting access
Daily crossword
Sneak peek of launches & events
Auto-renews at $5.99 monthly. Cancel anytime
Annual
$35
First yearthen $59.99/year
Discounted annual rate - Save 47%
Unlimited access (web + app)
Exclusive ad-free newsletters
Commenting access
Daily crossword
Sneak peek of launches & events
Auto-renews at $59.99 yearly. Cancel anytime
Best Value
Premium
$79
First yearthen $119.99/year
Discounted annual rate
Full access to the Daily Beast Substack ($60 value)*
Premium ad-free reading
Unlimited access (web + app)
Exclusive ad-free newsletters
Commenting access
Daily crossword
Sneak peek of launches & events
Auto-renews at $119.99 yearly. Cancel anytime
*Substack access provided by the next business day, using your subscription email. Choosing the Premium plan constitutes your permission to share your subscription email with Substack and your agreement to Substack’s Privacy Policy.
Looks like you already have a subscription!
You're all set!
Thanks for subscribing.
Subscription$0.00
Total$0.00
OR
Loading subscription options
Register below to read this article for free or subscribe to unlock unlimited access to The Daily Beast.
Monthly
$1
First monththen $5.99/month
Unlimited access (web + app)
Exclusive ad-free newsletters
Commenting access
Daily crossword
Sneak peek of launches & events
Auto-renews at $5.99 monthly. Cancel anytime
Annual
$35
First yearthen $59.99/year
Discounted annual rate - Save 47%
Unlimited access (web + app)
Exclusive ad-free newsletters
Commenting access
Daily crossword
Sneak peek of launches & events
Auto-renews at $59.99 yearly. Cancel anytime
Best Value
Premium
$79
First yearthen $119.99/year
Discounted annual rate
Full access to the Daily Beast Substack ($60 value)*
Premium ad-free reading
Unlimited access (web + app)
Exclusive ad-free newsletters
Commenting access
Daily crossword
Sneak peek of launches & events
Auto-renews at $119.99 yearly. Cancel anytime
*Substack access provided by the next business day, using your subscription email. Choosing the Premium plan constitutes your permission to share your subscription email with Substack and your agreement to Substack’s Privacy Policy.
