African gray parrots are highly intelligent birds that can learn to closely mimic human voices.

These Parrots Won't Stop Swearing. Will They Learn to Behave—or Corrupt the Entire Flock?

A British zoo hopes the good manners of a larger group will rub off on the eight misbehaving birds

Emperor penguins are the largest penguins in the world, but they're at risk of disappearing because of human-caused climate change.

Scientists Discover Four New Emperor Penguin Colonies From Satellite Images of Antarctica

The findings are a rare bright spot for the birds, which scientists predict will be mostly extinct by 2100

Patrons drank less wine at bars and pubs in England that removed the largest serving size from their menus.

People Drink Less Wine When Bars Remove the Largest Glass, Study Finds

The simple change could help reduce alcohol consumption and improve health at the population level, U.K. researchers say

One side of the silver medal depicts Zeus holding Nike in the palm of his hand, while the other side features the Acropolis in Athens.

Winners Got Silver Medals at the First Modern Olympic Games in 1896

A rare example of the nearly 130-year-old silver medal just sold at auction for $112,000

The 7.46-carat brown diamond is about the size of a gumdrop.

French Tourist Finds 7.46-Carat Diamond at Arkansas State Park

Julien Navas plans to have the brown gem split into two pieces so he can give half to his fiancée and half to his daughter

Churchill's custom-made dentures helped him maintain his distinctive speaking style.

Winston Churchill Wore False Teeth to Deliver Historic Wartime Speeches. Now, They're for Sale

The British prime minister likely acquired the custom gold-mounted dentures around the beginning of World War II

This spring, Brood XIII and Brood XIX of periodical cicadas will emerge together for the first time since 1803.

Cicadas Are Coming: Rare 'Dual Emergence' Could Bring One Trillion of the Bugs This Year

The 13-year and 17-year broods that will emerge from underground this spring will be appearing together for the first time in 221 years

Turkey’s government hopes the new policies will help protect the 1,500-year-old landmark in Istanbul.

Hagia Sophia Introduces Entry Fee for Foreign Tourists

Worshippers will be able to use a separate entrance to gain free access to the 1,500-year-old landmark in Istanbul

Bottom trawling is a polarizing fishing practice that involves dragging heavy nets and equipment across the seafloor.

Seabed Trawling May Be Spewing Huge Amounts of CO2 Into the Atmosphere

New research suggests the controversial fishing method is also contributing to increased ocean acidification, which can harm marine wildlife

Chicago's Field Museum announced its decision to cover certain display cases several days before new federal regulations went into effect.

Field Museum Covers Native American Displays to Comply With New Regulations

The federal rules require museums to obtain consent from tribal leaders before displaying or researching cultural heritage items

The envelope was sent twice: once on May 2, 1840, and again on May 4, 1840.

First Known Piece of Mail Sent Using a Stamp Goes to Auction

The 183-year-old envelope is a rare example of two early forms of prepaid postage: Mulready envelopes and adhesive stamps

To understand Elma's life, researchers cut her tusk lengthwise and took samples to study the elements present in the ivory.

Meet Elma, a Woolly Mammoth Who Roamed Far and Wide More Than 14,000 Years Ago

By analyzing a fossilized tusk, scientists have pieced together the animal's movements

Fire investigators determined the blaze was an accident, likely set by a fire someone had started to keep warm in the alley behind the building.

Works by Picasso, Rembrandt Damaged in Seattle Gallery Fire

Davidson Galleries had been preparing to move to a new location, so some of its works were especially vulnerable to smoke damage

Dogs are one of the few animals that use their tails primarily for communication.

Why Do Dogs Wag Their Tails? Scientists Examine the Endearing Behavior

Dogs communicate through tail-wagging, and humans may have selected for the trait during domestication

The new street sign in Paris' 13th arrondissement

You Can Now Walk Down 'Rue David Bowie' in Paris

The city's 13th arrondissement honored the British musical legend on what would have been his 77th birthday

Researchers studied roughly 50 numbats over the course of a year.

As the Planet Warms, Australia's Numbats Are at Risk of Overheating

The endangered, squirrel-sized marsupials forage for termites during the day—but they can become too hot after just ten minutes in direct sunlight, according to new research

The National Portrait Gallery in London is missing 45 items, according to PA Media's investigation.

What Are the 1,700 Items Missing From England's Museums?

Freedom of information requests have revealed more details about absent artifacts from the last 20 years

Researchers measure California snowpack levels at Phillips Station in the Sierra Nevada on January 2.

Climate Change Is Melting Snowpack, Pushing Some Regions Past a 'Snow-Loss Cliff'

Some of the Northern Hemisphere's most populous areas are at risk of warming past a critical threshold, after which snowpack melts rapidly with even small rises in temperature, study finds

A California grizzly bear specimen at the Santa Barbara Museum of Natural History. The brown bear subspecies went extinct around 1924.

California Grizzlies Weren't as Big—or Bloodthirsty—as People Once Thought

The now-extinct bears were mostly vegetarians and measured about the same size as today's North American grizzlies

Welcome Park is named after the ship that brought Penn across the Atlantic in 1682.

Officials Reverse Plans to Remove William Penn Statue From a Philadelphia Park

The National Park Service had proposed replacing the statue with public resources showcasing the city's Native American history

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