+
Science

How a little monkey's very hard day could teach us why we get jealous.

When they looked at the jilted monkey's brain, two areas in particular lit up.

science, research, biology, mental health, jealousy
Image via Pixabay and Photo by Jeff Kubina/Wikimedia Commons/Attribution-Share Alike 2.0 Generic.

The human game of love is a battle won and lost by more than just us.

This article originally appeared on 10.19.17


The monkey had a busy morning, but it was finally time to go home.

He was a small creature, about the size of a rabbit, with a long prehensile tail and dusky red fur. Earlier that day, scientists had scooped him up from his cage and taken him away to get a shot. But now that was done, and just like for many of us, heading home meant that he'd finally get to rest and hang out with his mate.

This time, though, his scientist colleagues weren’t done with him. In fact, our monkey was being set up for an incredible betrayal.


As the copper titi monkey settled in, he spotted his mate — not at home, but in the cage of a romantic rival. Suddenly, circuits deep in his brain came to life. He arched his back and smacked his lips, his tail lashing wildly back and forth.

If he could have gotten over to that cage, he'd have pulled his mate away in an instant, shouted, maybe even fought off the rival.

If you think the monkey’s reaction seems a lot like human jealousy, you're probably right. The entire setup was part of an experiment by Nicole Maninger and Karen Bales of the University of California to figure out where jealousy lives in the brain and how it works.

When they looked at the jilted monkey's brain, two areas in particular lit up.

An MRI and blood draw afterward gave Maninger and Bales a peek at the animal's brain, and in addition to higher testosterone and stress hormones, two more areas deep within his brain were triggered. The first, the cingulate cortex, has a lot to do with social rejection. The second, the lateral septum, is connected to bonding.

"The approximate locations of the cingulate cortex (red) and lateral septum (green) in an MRI of the human brain.

Original image from Geoff B Hall/Wikimedia Commons.

Put together, these areas of the brain appear to show us what Victorian novels, romantic comedies, and reality TV shows have long suspected: Jealousy is intimately tied to monogamy.

Monogamy is interesting because it's actually very rare in the animal kingdom. Fewer than 1 in 10 mammal species mate and bond with a single individual. Even humans aren't strictly monogamous. But we do form uniquely strong, lasting bonds between individuals.

What the research hints at, says Bales, is that the pain of jealousy might actually be one of the reasons monogamous animals bond so strongly to each other. This might even confer an evolutionary advantage, since monogamous male monkeys help raise and feed their kids.

So that tail-lashing, lip-smacking monkey might just help us understand ourselves.

"Understanding the neurobiology and evolution of emotions can help us understand our own emotions and their consequences," says Bales.

It could even help us recognize how our brains form romantic relationships — and what happens when those relationships go terribly wrong. About 1 in 3 women and 1 in 4 men are victims of intimate partner violence in their lifetimes, and research has hinted that jealousy might play a major role.

Human emotions are incredibly complicated, of course, and we shouldn't suggest that monkeys experience the exact same feelings we do. Titi monkeys have very different lives, societies, and evolutionary histories than people do.

Still, Bales says that we have seen hints of similar brain activity in human studies.

As anyone who's ever felt it knows, jealousy can be an intensely dark, powerful emotion. The next time you feel it, maybe you can take some comfort knowing just what is going on in your brain.

Maninger and Bales' work was published in the journal Frontiers in Ecology and Evolution.

Sponsored

ACUVUE launches a new campaign to inspire Gen Z to put down their phones and follow their vision

What will you create on your social media break? Share it at #MyVisionMySight.

True

If you’ve always lived in a world with social media, it can be tough to truly understand how it affects your life. One of the best ways to grasp its impact is to take a break to see what life is like without being tethered to your phone and distracted by a constant stream of notifications.

Knowing when to disconnect is becoming increasingly important as younger people are becoming aware of the adverse effects screen time can have on their eyes. According to Eyesafe Nielsen, adults are now spending 13-plus hours a day on their digital devices, a 35% increase from 2019.1. Many of us now spend more time staring at screens on a given day than we do sleeping which can impact our eye health.

Normally, you blink around 15 times per minute, however, focusing your eyes on computer screens or other digital displays have been shown to reduce your blink rate by up to 60%.2 Reduced blinking can destabilize your eyes’ tear film, causing dry, tired eyes and blurred vision.3

Keep ReadingShow less

Karlie Smith shows the meal she's bringing to the restaurant for her son.

A mom who admitted she packs her 2-year-old a meal when they go out to dinner has started an interesting debate on TikTok about restaurant etiquette and how it applies to young children.

The video posted by Ohio mom, Karlie Smith (unbreakablemomma on TikTok), has received nearly 600,000 views and has over 1,850 comments.

“Call me cheap, call me whatever, but if we’re going out to a restaurant, I’m packing my kid a meal," Smith, 21, said in her post. "I do this for many reasons. On Friday nights, my family and I get together, and tonight, we’re getting food out. My son is not getting food out.”

Keep ReadingShow less
Pop Culture

Man rewatches shows from his childhood and his recaps of the bonkers storylines are priceless

Rob Anderson's hilarious recaps of shows like "Mighty Ducks," "Beethoven," and "7th Heaven" might make you wonder how they got made in the first place.

@hearthrobert/TikTok

These plots makes zero sense.

While there are no doubt some timeless classics from our childhood that remain every bit as amazing as we remember, many are straight-up cringey upon a later viewing. Really, it’s to be expected as societal viewpoints change…sort of a marker of how far we’ve collectively come.

And so, what do we do with these problematic pieces of old-school pop culture? Well, we can certainly update them to better reflect a more modern attitude, but that also comes with a set of potential problems. Or we could simply never watch them again. Certainly an option given all the content out there. But then we might miss an opportunity to better understand what seemed to work for the mainstream then, and why it doesn’t work now.

And then there’s the third option—allow ourselves to be entertained by their cringiness.

That’s certainly the route taken by Rob Anderson. Over on TikTok, Anderson has taken ultra-popular movies and television shows from his childhood and given them hilarious recaps capturing how absurd some of the storylines are.
Keep ReadingShow less
Joy

18-year-old took her college savings and bought the restaurant where she was a dishwasher

Samantha Frye, the newest owner of Rosalie's restaurant, is proving there's more than one way to invest in your future.

Canva

There are many way to invest in your future

Eighteen year old Samantha Frye has traded college life for entrepreneurship, and she has no regrets.

Frye began working at Rosalie's Restaurant in Strasburg, Ohio at 16 as a dishwasher, working up the ranks as a kitchen prep, server, then line cook. All while working a second job, sometimes third job.

After graduating high school, Frye started college at Ohio State with plans of studying business or environmental engineering. But when she came back to work a shift at Rosalie’s for winter break, an opportunity arose—the owners had planned to sell the restaurant.
Keep ReadingShow less
Joy

Woman decides that she is the love of her life and marries herself at her retirement home

“I said, you know what, I’ve done everything else. Why not?”

77-year-old woman decides she's the love of her life and marries herself.

We joke about marrying ourselves or a platonic friend if some arbitrary amount of time has passed without a proposal from an imaginary suitor. And sure, some people do wind up marrying a friend in more of a business arrangement, but it's not very common that someone follows through with marrying themselves.

Dorothy "Dottie" Fideli, decided that she was going to break the mold. The 77-year-old sat down and thought about all of the things she had done in life and who was with her the entire time cheering her on. It was an easy answer: herself. She was her biggest cheerleader, the person who always showed up and the love of her life, so Fideli made the plan to marry herself.

On a beautiful May day, friends and family gathered in the O’Bannon Terrace Retirement Community, where Fideli is a resident, to witness the ceremony.

Keep ReadingShow less
Joy

12-year-old Texas girl saves her family from carbon monoxide poisoning

She knew something was wrong with her mom and brother, which wound up saving her whole family.

Fort Worth 12-year-old helps save family from carbon monoxide poisoning.

Carbon monoxide is called a silent killer for a reason. Many people don't realize they're experiencing carbon monoxide poisoning before it's too late. The gas is colorless and odorless and tends to have a sedating effect that causes people to sleep through the fatal poisoning. Having carbon monoxide detectors is one of the most effective ways to identify the gas before it's too late to get out of the house, but not every home has one.

A little girl in Fort Worth, Texas, experienced a terrifying encounter with the deadly gas, but her quick actions saved her entire family. Jaziyah Parker is being held up as a hero after she realized something was wrong with her family members and called for help.

The girl called 911 after she noticed her mom pass out. On the call with the dispatcher, Jaziyah says she thinks her mother has died before explaining that there was something now wrong with her baby brother, who was just 5-months-old.

Keep ReadingShow less

Drew Barrymore speaks during the FLOWER Beauty launch at Westfield Parramatta on April 13, 2019, in Sydney, Australia.

Drew Barrymore, 48, has been in the public consciousness since she starred as Gertie in 1982’s mega-blockbuster, “E.T.: The Extra-Terrestrial,” a performance that earned her an Oscar nomination for Best Supporting Actress. So, it makes sense that many people of a certain age feel as if they’ve grown up with her.

Barrymore has consistently starred in hit films and movies that are rewatchable cable-TV staples, such as “Charlie's Angels” (2000), “Never Been Kissed” (1999), “Scream” (1996), “The Wedding Singer” (1998), “50 First Dates” (2004) and “Fever Pitch” (2005).

Now, she’s an even more significant part of people’s lives as the host of “The Drew Barrymore Show,” which runs every weekday on CBS. So far, the show has been a big success, attracting an average of 1.21 million views per show, and ranks as the #4 talk show in syndication. It was recently renewed through the 2024 season.

Keep ReadingShow less