Baby monkeys chose a soft, warm doll over a wire one with food

At one point in the 20th century, more than a million Americans had pet monkeys

This choice to domesticate monkeys proved to be trickier than expected, and thus isn't a very appealing option for humans. Monkeys breed more slowly than other animals, while also being susceptible to diseases and challenging to contain.

Grieving primate mothers will carry dead infant for long after death—and others will comfort her

An examination of infant corpse carrying practices among non-human primate mothers found that 40 species of primate mothers will carry around their dead infant for days, weeks, or even months. In some cases, a grieving primate's group members would provide grieving support—hugging or staying close to mothers who experienced a loss.

Charles Darwin studied goose bumps by scaring zoo animals in London with a stuffed snake

Read the famous naturalist’s work from the late 1800s, detailing how he sought to draw comparisons between how animals and humans respond to fear. As part of that work, he exposed monkeys and a peccary to a stuffed snake and noted the animals’ hair-raising fear response.

Nine different studies exploring animals' relationship to music

Researchers have conducted multiple studies attempting to answer a certain question: do animals like human music? Across species, they observed different results and no clear pattern. Primates appear to prefer silence, and cockatoos appear to dance to funky beats.

Labubu dolls are based on characters from an illustrated book series

The plush dolls are based on characters from Kasing Lung's "The Monsters" book series. The collectible toys became a sensation when they were first released in 2019, with fans using the dolls as fashion accessories.

Touch helps newborns regulate stress, gain weight, and feel less pain

Conclusions from this 2024 analysis from a team of Danish researchers included that touch interventions were particularly useful for newborns in regulating cortisol levels, helping newborns gain weight, and reducing pain. (Some users may experience a paywall.)

Watch David Attenborough's unexpected interaction with a family of gorillas on 'Life on Earth'

On the border between Rwanda and the modern-day Democratic Republic of the Congo, Attenborough used specific vocalizations and behaviors to approach a female gorilla peacefully, only to have two of her children lie down on him. Through a comical exchange, the incident helps show the creatures to be the opposite of the aggressive, violent stereotypes about them.

Learn about the neuroscience and psychology of why we crave comfort foods

The term was coined in 1966, when psychologist Joyce Brothers suggested humans turn to food associated with the feelings of comfort from their childhoods when experiencing emotional distress. Since then, studies have shown that the familiarity, reliability, and convenience of certain foods from one's upbringing can become tied to feelings of nostalgia.

The rare 1970s Ken Doll with facial hair

In 1973, Mattel released the Mod Hair Ken Doll. The toy was the first Ken since 1961 to possess "real" rooted hair, plus it came with sideburns, a beard, and two mustaches. For clothes, he wore a brown and white checked jacket, white turtle neck, light brown pants, and brown shoes. Take a look at images of the doll decked out in 1970s fashion for insight into life in another era.

Brain-computer interfaces create a direct link between the brain and external devices

The technology enables users to control prosthetics, computers, or even games using only their thoughts. In 2021, a monkey played table tennis using only its brain, thanks to a Neuralink device, marking a major milestone before human trials began in 2024.

A researcher thinks she knows why people keep touching museum exhibits

A museologist who studied unauthorized touch at the British Museum concluded that people may feel it's difficult to learn about things "unless you handle them" and that people are trying to connect with the past, viscerally. Her work has included interviewing British Museum visitors who committed unauthorized touches and spending extensive periods observing people touching prohibited items across 2004 and 2005.

Are we too attached to attachment styles?

Attachment theory was developed to help understand the impact of caregiver relationships on children. Recently, the theory has been applied to adults, categorizing them into different attachment styles. Is it accurate? This podcasts takes a closer...

Beanie Babies used to be viewed by some as alternative investments

Beanie Baby stuffed animals were once a hot collector item with skyrocketing prices as people believed that the toys would significantly grow in value over time.

The basics of behaviorism and its founder John B. Watson

Watson believed he could use classical conditioning to shape the behavior of infants toward positive outcomes, culminating in his famous "Little Albert" experiment. Here's a quick overview of his life and thought.

The history of torturing robots

When machines fail, its easy to get mad and even give them a good kick. But as humanoid robots become more sophisticated, the degree to which people abuse them has shifted, depending on how much emotion the robot expresses. Studies revealed when robots were programmed to cry during distress, participants felt empathy. Learn more about the history of human abuse of robots here.

The spooky images of Victorian mothers hiding as their babies posed

Taking pictures of your kids is a huge headache now, but it was even harder for mothers in the Victorian era, when camera technology made posing for photographs difficult. These weird photos will show you how these mothers got their kids to sit...

The forgotten campaign to replace the Teddy Bear with 'Billy Possum'

After a 1909 pre-inauguration dinner for incoming President William Howard Taft featured possums and potatoes as the main course, Susie W. Allgood wanted to produce and market an alternative to the Teddy Roosevelt-inspired teddy bear: Billy Possum. Kids thought it looked too much like a rat.

Ritual Maya dental ornaments may have prevented tooth decay

Analysis of Maya dental sealants shows they used plant resins and gums—some derived from pine with antibacterial properties—suggesting gemstone tooth inlays may have helped reduce infection while serving ritual and symbolic purposes.

Who is the woman behind today's CPR doll?

According to a recent survey, about half of Americans know how to do CPR—many of whom learned on a mannequin called Rescue Annie. It turns out that this training doll may be based off a woman who became famous after drowning in the Seine, after...

Salvador Dalí’s remains were exhumed for a paternity test

Years after Dalí’s death in 1989, fortune teller Pilar Abel filed a suit claiming she was the child of an affair Dalí had with her mother. In 2017, Dalí’s body was exhumed for testing. Dalí was not the father, but the artist’s mustache remained intact decades after his passing.

Indigenous women crafted the integrated circuits for the Apollo Guidance Computer

Applying their blanket-weaving skills, over 1,000 Navajo women in New Mexico were hired to connect circuit components in intricate patterns using a microscope. Outside Boston, "rope mothers" at the Raytheon facility wove the AGC's core memory using threaded metal wires.

Marina Abramović and Ulay worked and lived together for 12 years

Their infamous body of work, known as “The Relation Works,” aimed to explore the dynamics between male and female partnerships, exposing power imbalances and frustration. (This resource contains some artistic nudity.)

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Microphone technology made crooning possible

Before the electric microphone, vocalists needed to project to have their voices captured. The new technology, however, made softer, more intimate singing possible, leading to a new style of singing that took off in the late 1920s, with "crooners" becoming some of the first American pop stars.

'Sesame Street' scrapped an episode about divorce because tests showed it deeply upset children

The 1992 episode, entitled "Snuffy's Parents Get a Divorce," left test audiences concerned rather than comforted, with many children left in tears. The show canned the episode before it aired and didn't address divorce until 20 years later, with a 13-minute online-only segment.

Crows are believed to have intelligence on par with a seven-year-old child and demonstrate complex behaviors, from problem-solving with tools to recognizing human faces.

Amazon is the most-loved brand among baby boomers

Macy's ranked at number five for the oldest generation alive today, whereas Gen Xers have Apple in their number one slot. This data visualization outlines the most-loved brands among baby boomers.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

Many legends about George Washington, including his supposed wooden teeth and the story of cutting down the cherry tree, lack evidence.

In recent years a child anxiety expert has created and tested a novel phobia and anxiety treatment approach for children, focused on changing how parents respond to the fears.

The tragic Pulitzer Prize-winning image 'The Vulture and the Little Girl' (1993) generated controversy, raised concerns about ethics in photography, and eventually led to the photographer's death.

Scientists have struggled to pin down Ebola's natural reservoir species for decades, but the available evidence suggests that it's very likely fruit and insect-eating bats found in Africa.

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

Salvador Dalí believed he was his own dead brother, who had died nine months before he was born

Brian Wilson wrote the Beach Boys' 'Don't Worry Baby' for the Ronettes, but the legendary girl group rejected it.

American short story writer Flannery O'Connor raised 40 peacocks, which became potent symbols for her fiction's elegant violence

A vending machine run with Anthropic's AI went out of business after it was convinced to give away items for free and sell a video game console.

Watch a 1934 short film starring jazz legend Cab Calloway, a major figure in the Harlem Renaissance's music scene

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.