The Barbados threadsnake is just three to four inches long and about the same width as a strand of spaghetti. Pictured here in 2006, the species was officially described in 2008.

Scientists Feared the World’s Smallest Snake Had Gone Extinct. They Just Found It Again

When fully grown, the Barbados threadsnake is only three to four inches long—shorter than many earthworms

Scientists found a partial dinosaur vertebra inside a geological core sample that measures just 2.5 inches in diameter.

‘Nothing Short of Magical’: Scientists Discover a Dinosaur Bone Nearly 800 Feet Beneath a Parking Lot at a Denver Museum

The partial vertebra appeared inside a 2.5-inch-diameter column of rock that researchers drilled, earning the title of the oldest and deepest dinosaur fossil found in Denver

E. mollyborthwickae is now on display at London's Natural History Museum.

‘Enigmatic’ Dog-Sized Dinosaur Reveals a New Species That Scampered Around Jurassic North America

The speedy, plant-eating creature lived in what is now Colorado roughly 150 million years ago, and its skeleton went on display in London this week

Today's living night lizards—like Xantusia vigilis (pictured)—are descendants of a common ancestor that lived roughly 90 million years ago, well before the Chicxulub asteroid struck Earth 66 million years ago.

These Lizards Mysteriously Survived the Asteroid Strike That Killed the Dinosaurs—and Their Descendants Are Still Alive Today

Small and elusive night lizards probably persisted because they have slow metabolisms and like to hide out in rock crevices, a new study suggests

The well-preserved cubs—which turned out to be sisters—were discovered in 2011 and 2015 in northern Siberia.

14,000-Year-Old ‘Puppies’ Found in Siberia Were Wolf Littermates Who Dined on Woolly Rhino

Researchers studied chemicals found in the animals’ bones, teeth and tissues, as well as genetic material from their stomach contents

The mosquitos are dropped from drones inside small, cylindrical, biodegradable containers.

Scientists Are Using Drones to Unleash Thousands of Mosquitoes in Hawaii in a Bid to Save Native Birds. Here’s How It Works

The lab-raised, non-biting male mosquitoes are meant to breed with the invasive ones on the islands and produce sterile eggs that will help suppress avian malaria

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Journey Into a Prehistoric Cave That Trapped and Entombed Animals for Millennia

The animals that plummeted 85 feet into Wyoming’s Natural Trap Cave provide a layered history of life dating back to the Pleistocene

An artistic reconstruction of the extinct megalodon. Scientists' ideas about how the megalodon looked are based on its fossilized teeth.

The Fearsome Megalodon Ate Basically Whatever It Wanted to Reach Its Daily 100,000-Calorie Need, Study Suggests

Scientists previously assumed the giant, prehistoric sharks mostly feasted on whales, but it turns out they probably weren’t so picky

Eastern quolls went extinct on mainland Australia in 1963.

See Eastern Quolls Get Released on Mainland Australia in a New Bid to Re-establish the ‘Magic Little Animal’

Conservationists recently introduced 15 of the polka-dotted marsupials into a protected area of New South Wales

The mosasaur vertebra measured more than seven inches wide.

Geologists Stumble Upon Remains of Giant ‘Sea Monster’ in Mississippi, Likely the Largest Mosasaur Ever Identified in the State

Researchers uncovered one vertebra, and based on its size, they estimate the massive creature was at least 30 feet long when it roamed the shallow seas that covered the region roughly 66 million years ago

Researchers took a closer look at fossilized footprints—including these cat-like tracks—found at John Day Fossil Beds National Monument in Oregon.

50-Million-Year-Old Footprints Open a ‘Rare Window’ Into the Behaviors of Extinct Animals That Once Roamed in Oregon

Scientists revisited tracks made by a shorebird, a lizard, a cat-like predator and some sort of large herbivore at what is now John Day Fossil Beds National Monument

A female Guam kingfisher (left) and a male (right) perch on a branch on Palmyra Atoll.

Biologists Rejoice as Extremely Rare Guam Kingfishers Lay Their First Wild Eggs in Nearly 40 Years

The brightly colored birds are extinct in the wild, having disappeared from their native Guam in 1988 due to the introduction of the invasive brown tree snake. But now, they’re starting to make a comeback on Palmyra Atoll

A reconstruction of a Neanderthal man in the Natural History Museum, Vienna. A new study suggests Neanderthals could not adapt to a period of increased radiation as well as early modern humans did.

Sunscreen, Clothing and Caves May Have Given Modern Humans an Edge Over Neanderthals When Earth’s Magnetic Field Wandered

A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth’s magnetic field that let more radiation reach the ground. Our species might have adapted more easily

Romulus and Remus, pups that the company Colossal Biosciences says are the first dire wolves to roam the planet in several thousand years, are seen at one month old.

Have Dire Wolves, Which Went Extinct More Than 10,000 Years Ago, Really Been Brought Back to Life?

Pioneers in the science of “de-extinction,” an American company has announced the births of three pups whose genes resemble those of a species that hasn’t roamed Earth for millennia

Researchers carefuly wrapped the tusk in strips of plaster-covered burlap for protection.

Cool Finds

A Hunter Was Out Looking for Deer in West Texas. He Found a Rare Mammoth Tusk Instead

Discovered in the drainage area of a creek bed, the tusk was initially thought to be “just an old stump”

A new study suggests that the lemon shark, pictured here, is a better analogue for the megalodon's size than a great white.

Megalodon Might Have Been Longer and Skinnier Than Previously Thought, Growing Up to 80 Feet

A new paper suggests the enormous, extinct shark looked less like a bulky great white and more like an elongated lemon shark

The Florida white is among the butterflies experiencing the most drastic population loss, according to a new study.

U.S. Butterflies Are Disappearing at Drastic Rates, With One in Five Gone Since 2000

A new study finds the popular, fluttering insects have declined by 22 percent in the last 20 years

The mice were genetically engineered to have mammoth-like traits, such as thick, fluffy hair.

Biotech Company Creates ‘Woolly Mouse’ as a Step in Its Quest to Resurrect Woolly Mammoths Through Gene Editing

Colossal Biosciences leaders say the fluffy, golden-haired mice help validate their technique to “de-extinct” species, but outside scientists remain skeptical

The title page painting in Jay Matternes: Paleoartist and Wildlife Painter features a dynamic scene from the Pliocene.

See Stunning Illustrations of Prehistoric Life From One of the Most Renowned Paleoartists in the World

A new book highlights the beautiful work of Jay Matternes, an accomplished artist who drew everything from mammoths to early humans

For reasons scientists still don’t totally understand, these beautiful and mystical birds went extinct on February 21, 1918.

On This Day in History

The Last Member of This Bird Species Died in Captivity on This Day in 1918

Incas died at the Cincinnati Zoo, leaving behind mysteries over his death, his final resting place and the factors that led to the extinction of the Carolina parakeet

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