Anatomy

Charlotte is a round stingray, a species named for its circular, disk-shaped body.

'Pregnant Virgin' Stingray Won't Give Birth After All—Here's Why

Charlotte, a female round stingray in North Carolina who has gathered a legion of online fans, is no longer pregnant due to a "rare reproductive disease"

The bladder and the brain are involved in determining when we need to urinate.

How Do We Know When to Pee?

The basic urge is surprisingly complex and can go awry as we age

African wild dogs might use facial expressions to communicate with each other as they hunt in packs on the savanna.

Wild Dogs Have Muscles for 'Puppy Eyes,' Suggesting the Cute Expression Did Not Evolve Just for Humans

African wild dogs have the same well-developed eye muscles that domestic dogs use to make their signature pleading faces, a recent study finds

The world’s quietest room registers a background sound of -24.9 dBA.

In the Earth’s Quietest Room, You Can Hear Yourself Blink

Background noise in the custom-built chamber is actually measured in negative decibels, which means it’s below the threshold of human hearing

The mummified head, reconstructed by a forensic sculptor, belonged to a woman who lived in Egypt during the region's Greco-Roman period, between 332 B.C.E. and 395 C.E.

See the Reconstructed Face of a Mummy Stored in a High School Library Since 1915

A forensic artist hopes the sculpture will help humanize the mummy, which appeared at Australia's Grafton High School under mysterious circumstances

The otherworldly form of the octopus has inspired millennia of fear and awe from humans.

Ten Wild Facts About Octopuses: They Have Three Hearts, Big Brains and Blue Blood

These bizarre creatures have been around for hundreds of millions of years, and for humans, they’ve inspired horror, admiration and culinary prestige

Hand washing is one of the simplest ways to prevent disease transmission.

The Dirty Secret About How Our Hands Spread Disease

The human hand is an incredible tool—and a deadly threat

Roger Federer hits a forehand shot at Wimbledon. The tennis great has called his racket an extension of his arm.

How Did Humans Evolve to Use Everyday Tools?

An anthropologist explains why we experience many objects, from tennis rackets to cars, as extensions of our bodies

Charlotte, a round stingray, was determined to be pregnant, despite not having a male ray companion for at least eight years.

A Female Stingray That Hasn't Had a Mate in Eight Years Is Mysteriously Pregnant. Is a Shark the Father?

Though the round stingray, named Charlotte, shares her aquarium tank with two male sharks, experts say it is impossible for a shark to impregnate a ray

Fabrizio Fidati, a 57-year-old amputee, uses the MiniTouch device with his prosthetic to accurately sort cubes of different temperatures.

In a First, a Prosthetic Limb Can Sense Temperature Like a Living Hand

The advance may help users feel a greater sense of human connection through touch

Temperature varies from person to person and it differs throughout the day.

What's Really the Average Human Body Temperature?

Long thought to be 98.6 degrees Fahrenheit, the measurement is highly personal and varies depending on time of day, among other factors, new research finds

Wispy gold interneurons and astrocyte cells surround large cortical neurons in this painting of the brain’s inner circuitry.

See Seven Stunning Gold Paintings Inspired by the Brain

Artist Greg Dunn creates breathtaking renderings of neurons and their surrounding anatomy

A plate from the Birth Atlas, the Maternity Center Association's manual depicting the entire Birth Series using photography and line plate drawing

At the 1939 World’s Fair, Robert Latou Dickinson Demystified Pregnancy for a Curious Public

The gynecologist and sculptor’s “Birth Series” broke barriers, but how do his views on abortion, race and women’s health square with what we know today?

An animated rendering of one of Leonardo's designs for a flying machine

Explore Animated Models, Digitized Sketches and More in Leonardo da Vinci's Largest-Ever Online Retrospective

The new Google Arts & Culture hub features high-resolution scans, 3D renderings and artificial intelligence experiments

Researchers think that this pendant could be the oldest known depiction of a penis—and early evidence of humans' ability to think symbolically.

Is This the Earliest Known Phallic Art?

Researchers think the 42,000-year-old artifact was carved from graphite to resemble a penis

The Hunterian is one of few places in the United Kingdom where the public can see specimens prepared specifically to show human anatomy.

See Tables Crafted From Human Tissue, a Toad With Eggs on Its Back and More at This London Museum

The newly reopened Hunterian Museum acknowledges the ethical quandaries posed by its collection of anatomical specimens

A male (silver) and female (brown) common European adder meet prior to mating. Scientists are just beginning to understand female sexual anatomy in snakes.

Why Did Scientists Wait So Long to Study the Snake Clitoris?

The delay is representative of a major problem in biology: Female and intersex animals are understudied compared with their male counterparts

An illustration of Charles Byrne, whose bones were displayed at the Hunterian Museum in London for some 200 years

Why a London Museum Is Removing the Skeleton of an 'Irish Giant' From View

Charles Byrne asked for his body to be buried at sea. Instead, an anatomist bought his bones and displayed them to the public

Researchers found a two-part organ called the hemiclitoris after dissecting a death adder snake.

Scientists Discover That Snakes Have Clitorises

The finding highlights disparities in research on male and female animals

This year’s picks include Fresh Banana Leaves, Origin and Starry Messenger.

The Ten Best Science Books of 2022

From a detective story on the origins of Covid-19 to a narrative that imagines a fateful day for dinosaurs, these works affected us the most this year

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