Thousands of years ago, there was a ceremony to bind close friends together as sworn siblings. Could the practice be resurrected today to strengthen modern friendships? Two women did just that.
Our sun was born in a cosmic cradle with thousands of other stars. Astrophysicists say they want to find these siblings in order to help answer the question: Are we alone out there?
The campaign to amend Florida's constitution to protect abortion rights kicked off in Orlando, attracting voters on both sides of the issue. The ballot question needs 60% approval to pass.
Kids have too much screen time and not enough autonomy, says author Jonathan Haidt. His book The Anxious Generation argues this has caused an epidemic of mental illness and suggests ways to fix it.
Two sisters found they had different recollections of a traumatic childhood experience and learned that human memory is a lot less reliable than we tend to think.
It's National Siblings Day! To mark the occasion, guest host Selena Simmons-Duffin is exploring a detail very personal to her: How the number of older brothers a person has can influence their sexuality. Scientific research on sexuality has a dark history, with long-lasting harmful effects on queer communities. Much of the early research has also been debunked over time. But not this "fraternal birth order effect." The fact that a person's likelihood of being gay increases with each older brother has been found all over the world – from Turkey to North America, Brazil, the Netherlands and beyond. Today, Selena gets into all the details: What this effect is, how it's been studied and what it can (and can't) explain about sexuality.
Interested in reading more about the science surrounding some of our closest relatives? Check out more stories in NPR's series on The Science of Siblings.
Claudia Evart, a woman who lost both her sister and her brother in separate accidents, created the day to honor the special relationships between siblings. It is on April 10 every year.
When siblings share a womb, sex hormones from a male fetus can cause lasting changes in a female littermate. This effect exists for all kinds of mammals — perhaps humans too.
The Clifford family was as prepared as possible to welcome Terrance the octopus. But there was one thing they missed: she was pregnant. And then she laid a whole lot of eggs.
Nakala Murry spoke exclusively to NPR about a petition that references the May 2023 shooting of Aderrien Murry. She said the move "caught her off guard."
Total solar eclipse chasers say that seeing the moon block out the sun, revealing the corona, is a life-changing experience. Kids, on the other hand, remember eating moon pies.
Researchers have learned a lot about blended families since the 1970s — when The Brady Bunch painted a perfect picture of stepsiblings getting along. Some of their advice might surprise you.
Colleges don't yet trust the FAFSA data the U.S. Education Department is sending them, but there's pressure to get aid offers out to students as soon as possible.