Twins typically fascinate us because of their incredible similarities. But sometimes, what makes identical twins truly intriguing are their surprising differences. A recent study in Science Direct highlighted exactly this, following the astonishing reunion of identical twin sisters separated as toddlers and raised in completely different cultures.

Born in South Korea in 1974, these twin sisters spent their first two years together until tragedy struck—they were accidentally separated at a busy market. Despite the family’s desperate search, only one twin could be located. While she remained with her family in Korea, the other was adopted and raised by a couple in the United States, unaware she even had a twin, let alone other siblings.

A childhood split across two worlds

The twin who grew up in America only discovered her true identity decades later, in 2018, after submitting her DNA to a South Korean program designed to reunite lost family members. It was then she learned of her identical twin sister, along with additional siblings.

IQ difference, South Korea, United States, adoption story, twin reunion, personality traits, mental health, resilience, Science Direct, intelligence gap, separated twins, sibling study, cultural impact, childhood trauma, DNA test, twin psychology, developmental science
A DNA led to a reunion across the globe. Canva

After their reunion, scientists eagerly examined the sisters, fascinated by the question at the heart of many twin studies: how much do environment and upbringing influence our personalities, mental health, and intelligence?

Tests quickly revealed something extraordinary: despite their identical genetics, the twins had startlingly different IQ scores. The twin raised in America scored a full 16 points lower than her sister raised in Korea—a difference far greater than typical IQ gaps of identical twins, which rarely exceed 7 points.

“The twins showed substantial differences in cognitive abilities that have been linked to strong genetic influence,” one researcher observed. Researchers speculated that multiple childhood concussions sustained by the US-raised twin could have played a role in her lower IQ score.

@lilibet.casas My girls in first grade were assigned different teachers. We were told this was a good idea since they were/are so codependent with one another. I debated trying to get them in the same class, but in the end, it was a great choice. They gained a little more independence from eachother & were so excited to see one another at the end of the day! #identicaltwins #twins #twinsisters #fyp #socute #sahmlife #twinsoftiktok #f4f #babies ♬ original sound – Lilibet.Casas

Shared traits despite stark differences

Yet, surprisingly, despite this stark intellectual difference and drastically distinct childhood environments, the twins shared remarkably similar personality traits. “Notable is that both twins are distinctively high on conscientiousness—indicating that both are purposeful, well-organized, dutiful, and achievement-striving,” the researcher wrote.

The study went deeper, noting the Korean-raised twin grew up in a nurturing, loving environment, while the American-raised twin faced considerable hardships with her adoptive family. Remarkably, both sisters displayed similar resilience, scoring closely on measures of self-esteem and mental health.

Ultimately, this compelling study reinforces how identical twins can be strikingly similar and astonishingly different simultaneously. Their story continues to intrigue researchers, illuminating the endless complexity within the ongoing debate of nature versus nurture.

This article originally appeared last year.

  • One man’s bad day led to a legacy of love from the ‘Kissing Tree’ for the whole Victoria community
    Photo credit: CanvaSneak a kiss while walking the sidewalk.

    There is a spot dedicated to love in Victoria, British Columbia. In it, a billowing tree grows from a woman’s yard into the sidewalk with an arch-like opening. For decades, couples have shared sweet moments under the shady green privacy of the “Kissing Tree.” Not only that, but children have been making wishes and new parents bring their babies to enjoy the quiet tranquility under the tree. Oddly enough, though, the creation of the Kissing Tree wouldn’t have happened if not for a violent riot.

    The story of Victoria’s Kissing Tree actually starts in New York City. In 1972, Bronx native Brian O’Reilly got his car stuck in the middle of a crowd waiting for a Rolling Stones concert. A riot broke out, forcing O’Reilly to protect himself with the only thing he had in his car: a tape recorder.

    “I wasn’t recording on purpose,” O’Reilly explained to CTV News. “I just had the microphone in my hand, and I had my arm up like this to defend myself and I was asking why he was hitting me.”

    Moving toward love

    O’Reilly was so upset at the encounter that he moved away from the United States to settle in British Columbia. That was where he met and befriended Bonnie. Over the years, the two became close. Then, Brian made his move.

    “He said, ‘I don’t want to date you. I want to marry you,’” Bonnie recalled to CTV News. “It felt amazing and wonderful because I had fallen in love with him.”

    They embraced under what is now known as the Kissing Tree.

    That one bad day in New York turned into 38 years of marriage in Victoria. While Brian has passed away, Bonnie has kept the tree the two of them enjoyed kissing under ready and available to all.

    “If you can come here and have an ‘aha!’ moment, isn’t that wonderful? Wouldn’t you like to do that for everyone?” Bonnie said.

    tree, foliage, British Columbia
    Screenshot

    The legacy of the Kissing Tree

    Over the last few decades, the Kissing Tree’s branches have created a natural arch from Bonnie’s yard over the sidewalk. After seeing several couples make a stop to kiss under the privacy of nature, Bonnie hung some lights under the tree to create a more intimate, cozier space.

    Thanks to the O’Reillys, couples have gotten engaged under the tree. Many resident couples have spent years making it a point to kiss under the tree whenever they pass through. That love has extended to children whispering wishes to the tree’s trunk. Pet lovers and new parents also have a nice quiet place for their dogs and babies to enjoy the shade.

    Other ‘Kissing Trees’ in North America

    There are other legendary “Kissing Trees” throughout North America, labeled as such for different reasons. In San Marcos, Texas, a large oak was dubbed “The Kissing Tree” after Sam Houston kissed the cheeks of the women who stitched him the state flag as a gift when he was running for governor.

    The Kissing Trees/Love Trees of St. Augustine, Florida have a legend of their own. These trees are typically an oak and a palm tree that grow intertwined together, symbolizing connection. Legend has it that if you were to kiss under one of these trees, your love will last forever.

    Whether it is imprinting magic onto a landmark or not, it is great to see how something as simple as a tree can connect people across time.

  • How out‑of‑work fishermen saved the American Revolution
    Photo credit: wynnter/iStock via Getty Images Plus Ships like these played a vital role in the American Revolution.

    George Washington knew his forces could not win the American Revolutionary War without some measure of sea power. “It follows then as certain as that night succeeds the day,” he later wrote in a letter, “that without a decisive naval force we can do nothing definitive, and with it everything honorable and glorious.”

    The problem was that the American commander did not have a navy.

    As a professor of early American history, I have taught courses on the American Revolution for more than 20 years and have written two books on its maritime dimensions. Washington’s solution wouldn’t come from a French shipyard or a congressional committee. It would come from a group of angry, out-of-work New England fishermen.

    Supplying the army from the sea

    In 1775, American ground forces managed to lay siege to the British army in Boston, but Washington needed provisions and military stores to sustain pressure on this key commercial hub. Looking out across the Atlantic Ocean, he noticed supply ships arriving in droves from Great Britain – unescorted – to supply the British army in Boston with guns and ammunition.

    Unbeknownst to them, the British had already handed the American commander the ships and mariners he needed to capture those resources.

    The Sons of Liberty, a network of political activists, had angered the British government by resisting taxes and commercial regulations – from the 1765 Stamp Act, which taxed printed documents, to the 1773 Tea Act, which controlled what tea leaves made their way into North American cupboards.

    To punish rebels for their treason, Parliament passed the Restraining Act of 1775, banning New Englanders from fishing on the Atlantic Ocean. Overnight, thousands of skilled mariners – men who spent their lives wrestling 100-pound cod out of the freezing, storm-tossed North Atlantic – were out of a job. They weren’t just unemployed; they were furious. These fishermen left their work tools and ships behind, picked up weapons and joined the siege of Boston alongside American farmers.

    Ashley Bowen, who lived and worked in Marblehead, Massachusetts, the principal fishing port in America at the time, recorded in his journal on May 22, 1775, “the fishermen are enlisting quite quick.”

    A letter from a French diplomat to the foreign minister in Paris confirmed the news a couple of weeks later: “4,800 sailors seeing they were going to be deprived of their fishing rights, deserted their ships and joined their compatriots under arms.”

    A black-and-white image shows John Paul Jones standing in the midst of a battle on a ship
    John Paul Jones, known as the Father of the American Navy, commanded sailors during the American Revolutionary War. Christine Kohler/iStock via Getty Images Plus

    Creating the first navy

    Washington, commissioned by Congress as commander in chief of all American armed forces in June 1775, saw an opportunity. He didn’t wait for Congress to build new frigates. Instead, he reached out to John Glover, a fish merchant from Marblehead and a commissioned officer under his command.

    Washington’s plan was simple: Take the sturdy, salt-stained schooners used for fishing and turn them into armed, seagoing predators.

    The first of these was Glover’s own fishing vessel and trade ship, Hannah. She wasn’t a formidable man-of-war but a 78-ton workhorse that spent summers at the Grand Banks and winters hauling rum and sugar from the Caribbean. Washington armed the trade ship with a few cannons, manned her with fishermen and sent her out to hijack British supply ships to help his army win the siege of Boston.

    Just two days after the Hannah was underway, her crew captured the Unity, a sloop loaded with naval stores and lumber, supplies sorely needed by British forces in Boston.

    Between August and October 1775, Washington outfitted a fleet of schooners at Congress’ expense to intercept British supply ships off the coast of New England. These vessels and crews, whose wages were paid by the American government, constituted what many historians consider America’s first navy. Washington reminded each captain that they sailed “at the Continental Expense.” These orders from Washington and the payments made by Congress made these ships official American warships, operating under the authority of what would become the federal government.

    These recruits didn’t need nautical training; they were seasoned seafarers who had battled rough waters and gale force winds. On Oct. 13, 1775, George Washington wrote to his brother, John Augustine Washington, that the fishermen were “soldiers … who have been bred to the sea.”

    In 1776, Washington informed the governor of Connecticut, who had asked to draft seamen from Washington’s regiments for his own naval expedition, that he could not spare any. “I must depend chiefly upon them for a successful opposition to the Enemy,” Washington explained.

    A black-and-white image shows two ships at battle
    An American navy ship defeats a British navy ship, 1779. Christine Kohler/iStock via Getty Images Plus

    Keeping the Revolution alive

    This fleet of converted fishing boats punched above its weight: In the early years of the war they captured 55 British vessels. One such prize, the Nancy, was transporting 2,000 muskets, 30 tons of musket balls and a massive 15-inch brass mortar – supplies the American army desperately needed for the war effort.

    Because the British navy was spread too thin, with too few warships available to police the Atlantic coastline, the armed fishing vessels were able to disrupt supply lines and keep the Revolution alive through its infancy. By the time the British realized the threat, the damage was done.

    On Feb. 26, 1776, just a few months after Washington launched his fleet, British Admiral Molyneux Shuldham wrote in a report to his superiors that his forces in Boston were low on everything from naval supplies to weapons. What little they could find had to be purchased “at the most extravagant prices.”

    The British government had not assigned military convoys to trans-Atlantic shipments at the start of the conflict in 1775. Now, Shuldham recommended arming the supply ships themselves, since valuable stores were being intercepted by rebels in small vessels, “however attentive our Officers to their Duty.”

    He concluded the report with an ominous note, explaining that he simply did not have the resources to do everything that was being asked of him – support the army, blockade rebel ports and protect British ships bound for Boston: “I must beg leave to observe to you the very few Ships I am provided with to enable Me to Co-operate with the Army, Cruize off the Ports of the Rebels to prevent their receiving Supplies, or protect those destined to this place from falling into their hands.”

    This article originally appeared on The Conversation. You can read it here.

  • Nonprofit wipes out millions of dollars in medical debt for 97,000 people in Connecticut
    Photo credit: CanvaMany low-income people in Connecticut had their medical bills paid off.

    Medical debt is one of the biggest drawbacks of the current United States economy. Per a report from the National Library of Medicine, 36% of U.S. households had medical debt in 2024. The report also stated that 21% of U.S. homes had a past-due medical bill, and another 23% were paying a medical bill over time to a provider. The pain is real, but relief has come for 97,000 people in Connecticut who just had their medical debt erased.

    In June 2026, letters were sent to residents of Connecticut telling them that some or all of their medical debt had been paid off. This miracle fends off the growing trend of people declaring bankruptcy due to unpaid medical debt.

    Now, people who otherwise have to choose between paying off their debt or buying necessities are given some much-needed breathing room. Eliminated medical debt means low-income families do not have to fear seeking medical care when it is most needed.

    “You have so much money in your pot, so to speak, and you have to divide it amongst different obligations and expenses, and for some, whose out-of-pocket costs for healthcare are so huge, they have to make very difficult decisions,” said Dr. Traci Marquis-Eydman told NBC Connecticut. “We see this in rural America, rural Connecticut, that patients are making those decisions all the time.”

    Connecticut’s government was able to provide this financial relief through Undue Medical Debt, a national nonprofit funded through donors and state funds. Using that money and $6.5 million in state funding they obtained for COVID-19 relief, Undue Medical Debt can purchase past-due medical debt.

    How does Undue Medical Debt work?

    Because they purchase debt in large batches, Undue Medical Debt can purchase the debt at a deep discount. Their website claims that every dollar donated purchases $100 worth of debt. If this sounds like how collection agencies make their money purchasing debt from hospitals, that’s because it is. The difference is that Undue Medical Debt isn’t trying to profit collecting from folks who cannot pay.

    Connecticut isn’t the first state to use Undue Medical Debt to help their citizens. In 2025, over $17 million in medical debt was purchased and wiped clean in Arizona through Undue Medical Debt and the AZ Blue Foundation.

    There are some caveats. In order to qualify, medical debt must match 5% or more of your annual income. If not that, then your income must be four times lower than the federal poverty level. Usually, people don’t apply for Undue Medical Debt relief. They will receive a letter in the mail indicating that their debt, whole or in part, has been taken care of.

    Does paying off others’ medical debt actually help them?

    There are arguments and studies that contradict the idea that this type of medical debt relief is effective. Critics believe that, even though medical debt is paid off, it doesn’t relieve overall financial stress of those in need. There is also the issue of paying off current medical debt and not additional debt that could be accrued. If a person has another medical emergency or is going through ongoing care, the problem can return.

    More time, experimentation, legislation, and study needs to be made to see what path is the most ideal for this problem. However, for 97,000 folks in Connecticut, there is one less item to worry about.

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