Animals
The 'World's Most Famous Grizzly' Was Killed by a Car. Was Her Death Preventable?
Grizzly 399 became a celebrity of Grand Teton National Park in her lifetime. Now, her death has drawn attention to wildlife-vehicle collisions and how they might be reduced
A 110-Year-Old Pickled Thylacine Head Helped Build the Most Complete Ancient Genome to Date, Says 'De-Extinction' Company
Colossal Biosciences reports it extracted DNA and RNA from the Tasmanian tiger specimen, a key step forward in its effort to create a modern proxy of the extinct species. Other scientists are calling for data to back up the claim
From Prolonging Wallaby Pregnancies to Disorienting Hatchling Turtles, 11 Ways Artificial Lights Affect Animals
From the busy cities to ocean waters, our need to illuminate the world has had some strange and tragic consequences
Polar Bears Are Exposed to More Parasites, Viruses and Bacteria as the Arctic Heats Up
Pathogens are more common in polar bears living in the Chukchi Sea now than they were three decades ago, a new study suggests—but it's not yet clear what that means for the mammals' health
A Massive, Mysterious 'Ghost' Fish, Feared Extinct for Nearly 20 Years, Has Been Rediscovered in Cambodia
The giant salmon carp was formally identified in 1991, and since then, fewer than 30 individuals had been documented
Salmon Make a Long-Awaited Return to the Klamath River for the First Time in 112 Years, After Largest Dam Removal in U.S.
Chinook salmon spark excitement among local Klamath Tribes, who have advocated for decades to restore the flow of the river in California and Oregon
In a First, Scientists Find Animals Thriving Beneath the Ocean Floor in Hidden Habitats Near Deep-Sea Vents
The discovery of worms and snails confirms that these still-mysterious, dark hotspots of life extend beyond what’s visible above the crust
Even as A.I. Technology Races Ahead, the Prehistoric Science of Wildlife Tracking Is Making a Comeback
Humans perfected how to identify wild animals over millennia, and now biologists are rediscovering the exceptional worth of the tracks and marks left behind
Fossils Reveal the Face of an Extinct Nine-Foot-Long 'Millipede,' the Largest Arthropod to Ever Live
Scientists in France solved the evolutionary mystery of this prehistoric monster, which resembles both the centipedes and millipedes of today
Admire the World's Largest Collection of Fossilized Poop at the New 'Poozeum' in Arizona
Owner George Frandsen has some 8,000 coprolites from dinosaurs, sharks and other creatures
This Pup Is Going Viral for Climbing to the Top of an Egyptian Pyramid
Paramotorists spotted the dog while soaring above one of Giza's pyramids last week
Scientists Have Found Microplastics in Dolphin Breath for the First Time
Each of the 11 dolphins sampled exhaled at least one suspected particle of microplastic, which researchers say “highlights how extensive environmental microplastic pollution is”
A Great White Shark Mysteriously Washed Ashore in Cape Cod, and Researchers Don't Know Why
Authorities have not yet identified the cause of death for the 12.5-foot-long shark, which was named Koala
Here's How Weather Balloons Can Harm Marine Animals
Latex balloons designed to collect high-altitude data can become a threat after they burst
Experts Don't Know How This Mysterious White Fox Ended Up in Oregon, More Than 1,000 Miles Away From Home
Identified as an Arctic fox, the animal is believed to have been kept in captivity far from its native habitat in the tundra. Now, it's receiving care from wildlife officials
Cats May Be Aware of Their Body Size, Suggests Study of Their Famously 'Liquid' Behavior
A scientist used at-home experiments to test whether cats hesitated when moving through increasingly shorter or narrower openings
These Frankenstein-Like Sea Creatures Can Actually Fuse Their Bodies Together
Two comb jellies can merge their digestive and nervous systems and even sync their bodily functions, according to new research. The discovery could have implications for human medicine
How a Dead Seal Sparked Theodore Roosevelt's Lifelong Passion for Conservation
As a child, the future president acquired a marine animal's skull, which became the first specimen in his natural history collection
Two Lions Went on a Man-Eating Spree in 1898. Now, DNA Evidence Reveals Their Diets
The notorious predators, nicknamed the “Man-Eaters of Tsavo,” terrorized railway workers in Kenya for roughly nine months
The Smithsonian National Zoo's New Giant Pandas Will Make Their Public Debut on January 24
A pair of 3-year-old giant pandas—a male named Bao Li and a female called Qing Bao—have officially arrived at the Zoo, where they will first acclimate to their new home
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