Returning Rapids Project investigator Chris Benson examines old photos of the Colorado River to see how it has changed over time.

Citizen Scientists Document a Recovering Colorado River

The Returning Rapids Project charts a resurgent waterway and its surrounding ecosystems

Before his death, Bobi held two world records: the oldest living dog and the oldest dog ever.

Bobi, Known as the 'World's Oldest Dog' at 31, Has Title Suspended Amid Investigation

The long-lived Portuguese canine broke two world records and captured the hearts of people around the globe, but skepticism surrounds his achievement

Solar eclipse viewers at NASA’s Johnson Space Center on October 14, 2023

Nine Dazzling Celestial Events to Watch in 2024

Skywatchers can expect spectacular meteor showers, a comet soaring past Earth and a long-anticipated total solar eclipse

Turquet’s octopus

Octopus DNA Reveals Clues to When the West Antarctic Ice Sheet Last Collapsed

Understanding the ice sheet's past could help researchers shed light on its future melting

Humans may perceive dogs with dark eyes as younger and more friendly, according to new research.

Here's Why Most Dogs Have Brown Eyes

Humans may have bred their canine companions to have darker eyes, because we perceive them as younger and more friendly, study finds

Keālia Pond National Wildlife Refuge

Could Climate Change Cause More Lakes to Turn Bright Pink?

While rosy-hued waters exist naturally around the world, a pond in Hawaii recently turned pink, and Australian scientists say the same could happen there

A volcano erupts near the evacuated town of Grindavík in southwestern Iceland.

Volcano Erupts in Iceland After Weeks of Earthquake Activity

On Monday night, plumes of lava and ash blasted more than 330 feet into the air

Scientists surveyed nearly 1,000 U.S. parents during the first half of 2023 to estimate melatonin use among kids.

Melatonin Use Is Rising in U.S. Children, Study Finds

Nearly one in five children under 14 are being given melatonin before bed, according to a survey of about 1,000 parents

An artist's rendering of one of the Voyager spacecrafts.

NASA's Voyager 1 Is Glitching, Sending Nonsense From Interstellar Space

The aging spacecraft, launched in 1977, is transmitting a gibberish pattern of ones and zeros back to Earth

A bilaterally gynandromorphic green honeycreeper near Manizales, Colombia. 

This 'Extremely Rare' Bird Is Half Female, Half Male

The green honeycreeper is only the second of its species ever observed with this condition—and the first recorded in more than 100 years

A cockatoo dunks its food before eating it. Scientists suggest this practice might improve the bread's texture.

Watch Cockatoos Dip Their Food in Water to Make It Soggy

A new study marks the first time that dunking behavior has been documented in parrots

David Attenborough stands next to the recently discovered pliosaur fossil at the Etches Collection Museum of Jurassic Marine Life in Kimmeridge, England.

Fossil Hunters Uncover Prehistoric 'Sea Monster' Skull at a U.K. Beach

The six-and-a-half-foot-long pliosaur skull was excavated from a rock cliff in England and may belong to a new species, scientists say

Boat docks sit on dry, cracked earth at the Great Salt Lake's Antelope Island Marina on August 1, 2021.

Could a 550-Mile Pipeline From the Ocean Save the Great Salt Lake? Scientists Say Probably Not

New research suggests the electricity costs would exceed $300 million per year and carbon dioxide emissions could approach one million metric tons annually

A 14-inch goldfish (Carassius auratus) pulled from the Niagara River

Giant Goldfish Are Bad News for the Great Lakes

Researchers are tracking invasive goldfish—which, often, were once kept as pets—in Lake Ontario to determine how best to manage them

Jonathan the tortoise in 2017

The World's Oldest Living Land Animal, a Tortoise Named Jonathan, Turns 191

Even at his advanced age, the Seychelles giant tortoise shows “no sign of slowing down,” his vet tells Guinness World Records

The Capital Kiwi Project members discovered two kiwi chicks late last month.

Wild Kiwis Born Near New Zealand's Capital for the First Time in More Than 150 Years

Conservationists discovered two brown kiwi chicks one year after the birds were reintroduced in a Wellington suburb

Illustration of the thalamus, a region of the brain linked to learning and memory.

Brain Implants Show Promise for People With Traumatic Brain Injuries in Small Study

Electrodes placed in the brains of five patients led to "profound" improvements in cognitive function, even years after their injuries

Eczema affects almost 32 million people in the United States.

Here's What Can Cause Itchiness, According to New Research

Scientists discovered a connection between a bacteria linked to eczema and an itch-causing enzyme in a study of mice

German researchers tested dolphins' ability to detect electric fields.

Bottlenose Dolphins May Have an Electric Sense, Study Finds

Dimples called vibrissal pits on the beaks of the mammals can perceive electricity and might help with hunting and navigation

A mule deer carcass in Yellowstone National Park tested positive for the fatal neurological illness known as chronic wasting disease.

'Zombie Deer Disease' Documented in Yellowstone for the First Time

The neurological condition, called chronic wasting disease, has a 100 percent fatality rate in the deer, moose and elk it infects

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