Animals

Grizzly 399, along with one of her cubs, in Grand Teton National Park in 2021.

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

Researchers are trying to "bring back" the thylacine, or Tasmanian tiger, a species that has not been officially recorded since 1936.

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

Tourists watch leatherback sea turtle hatchlings crawl toward the sea under the glow of less intrusive red lights. Artificial white lighting can attract the hatchlings away from the ocean, where predators may be lurking.

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 spending more time on land as sea ice shrinks.

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

Scientists feared the giant salmon carp had gone extinct, but recent discoveries revealed the elusive species is still in the wild.

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

The Upper Klamath River is also part of restoration work. The salmon's return inspires biologists to continue their efforts in the upper basin.

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

A sample of ocean crust, turned upside down, reveals tubeworms and other organisms.

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

Jonathan Shapiro, a Vermont-based wilderness instructor and certified “specialist” tracker on the East Coast, during an evaluation in the California desert.

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

A 2007 illustration of Arthropleura, the largest known arthropod, which grew nearly as large as a car. New research suggests previous visualizations of the animal's head were incorrect.

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

The free museum is located in Williams, Arizona, about an hour south of the Grand Canyon.

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

The Pyramid of Khafre is the second-largest pyramid in Egypt.

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

Researchers collect exhaled breath from a wild bottlenose dolphin during a health assessment conducted by the National Marine Mammal Foundation and its partners in Louisiana's Barataria Bay.

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 known to researchers as "Koala" washed ashore on Cape Cod in Massachusetts earlier this week. Scientists are still trying to figure out why.

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

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Here's How Weather Balloons Can Harm Marine Animals

Latex balloons designed to collect high-altitude data can become a threat after they burst

Oregon residents spotted a rare Arctic fox, which does not live in the region. Now, the animal is receiving care at a wildlife rehabilitation hospital.

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 are known for their ability to squeeze into tight spaces.

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

Two comb jellies have fused together and are being probed by a pipette.

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

By age 11, Theodore Roosevelt boasted that he had 1,000 scientific specimens in the collections of his Roosevelt Museum of Natural History.

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

The lions have been housed as taxidermy specimens at the Field Museum in Chicago since 1925.

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

Qing Bao, a 3-year-old female, is one of two giant pandas making the long journey from China to Washington, D.C. 

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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