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Paleontology

An artist's reconstruction of Edmontosaurus some 66 million years ago

Scientists Finally Know What This ‘Mummified’ Dinosaur Looked Like

A recent study suggests the unique geology of an area in Wyoming makes it a trove of unusually preserved fossils

Epiatheracerium itjilik lived in a forested lake habitat on Devon Island 23 million years ago. 

Scientists Discover ‘Frosty’ Polar Rhino That Roamed the Canadian Arctic 23 Million Years Ago

The newly identified species was small, hornless and possibly covered in fur, which would have helped it survive dark, cold winters above the Arctic Circle

Two T. rex dinosaurs square up for a fight in an illustration. Dinosaurs in the Cretaceous were thriving until the Chicxulub asteroid initiated a mass extinction.

The Dinosaurs of North America Were Thriving Up Until an Asteroid Wiped Them Off the Face of the Earth, Scientists Argue

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago

An illustration shows the types of megafauna that may have lived near Australia's Mammoth Cave about 50,000 years ago. From left to right: Murrayglossus hacketti, a giant long-beaked echidna; Procoptodon browneorum, the giant kangaroo whose bone is the subject of new research; Zygomaturus trilobus, a giant diprotodontid; and Thylacinus cynocephalus, a Tasmanian Thylacine

A Giant Kangaroo Bone Is Challenging the Idea That Humans Wiped Out Australia’s Megafauna

Indigenous Australians may have been early “paleontologists,” not big-game hunters, according to a new analysis

The first hand and foot fossils clearly linked to Paranthropus boisei reveal the human relative could have handled stone tools.

Cool Finds

Discovery of First Fossil Hand Linked to P. Boisei Suggests the Bygone Human Relative Could Have Used Tools

A new study sheds light on the enduring mystery of whether our ancient cousins were toolmakers, too

Coins left behind as offerings helped the researchers measure the size of the imprint from photos.

Chicago’s Famous ‘Rat Hole’ Wasn’t Actually Made by a Rat, According to a Statistical Analysis

Scientists are almost certain the viral imprint in a city sidewalk was actually made by an unlucky squirrel

Camels evolved into a range of shapes and sizes, including small forms like these Stenomylus on display at the American Museum of Natural History.

Meet the Extinct Camels of North America, From Ice Age Giants to Sheep-Size Runners

Largely outshone by fossils of horses, the earliest camels are getting another look from scientists determined to sort out the relationships and adaptations of these “absolutely bonkers” herbivores

Artist's reconstruction of the ancient Macromyzon siluricus leech

Leeches May Be 200 Million Years Older Than We Thought—and Haven’t Always Sucked Blood

A Wisconsin fossil find suggests leeches once ate their prey whole or simply sucked up their innards

An artistic rendering of a Joaquinraptor casali with a croc leg in its mouth.

Cool Finds

Paleontologists Discover Megaraptor Fossil With a Crocodilian’s Leg Still in Its Mouth

The finding in Argentina reveals a new megaraptor species that would have ruled at the same time as North America’s T. rex, shedding light on what it took to be a prehistoric top predator

An artistic rendering featuring a confrontation between two dome-headed dinosaurs

Cool Finds

Paleontologists Discover Earliest Known Dome-Headed Dinosaur in Excellent Condition, Shedding Light on Its Mysterious Anatomy

Most of what researchers previously knew about the iconic Cretaceous dinosaurs came from their domed heads, which endured better than the rest of their skeletons

A fly trapped in a studied amber sample. 

Cool Finds

112-Million-Year-Old Amber Samples Preserve a Snapshot of an Ancient Forest

The deposits from the time of the dinosaurs contain fragile insects and a spider’s web

An illustration of a Pterodactylus hatchling struggling in a tropical storm

Baby Pterosaur Fossils Reveal Mid-Flight Injury and Watery Death, Helping Solve a Paleontological Mystery

A 150-million-year-old fossil hotspot in southern Germany yields an astounding number of well-preserved juvenile pterosaurs, and scientists wondered why it contained fewer adults

Researchers directly dated dinosaur eggs, which had filled with calcite crystals, in China.

Paleontologists Directly Date Dinosaur Eggs for the First Time, Shedding Light on the Cretaceous World 85 Million Years Ago

Using uranium-lead dating, researchers calculated the age of the eggs, rather than the sediments around them, at the Qinglongshan site in China

Animal life seemed to explode into a wide variety of new forms in the Cambrian period.

What Led Life to Flourish Roughly 520 Million Years Ago?

Changes to the world’s oceans and the rise of certain predators may have driven diversification

An artist's interpretation of what early penguins in New Zealand might have looked like

Early Penguins Had Long, Dagger-Like Beaks for Skewering Fish, New Zealand Fossils Reveal

Paleontologists describe four new species of extinct ancestral penguins that help shed light on how the iconic birds evolved after dinosaurs went extinct

Predatory dinosaurs like Acrocanthosaurus perform a mating dance. Fossils indicating such a dance took place, possibly by this species, were described in 2016.

From Dinosaur Scratches to Insects in Amber, How Paleontologists Uncover Prehistoric Courtship

Researchers have found fossil evidence of varied creatures wooing and mating, as they continue to search for the telltale signs of dinosaurs copulating

An artist's reconstruction of what Spicomellus afer would have looked like.

Oldest Known Fossil of an Armored Ankylosaur Is ‘Far Weirder’ Than Paleontologists Expected

The 13-foot dinosaur, covered in long spikes fused into its bones, suggests ankylosaurs developed tail weapons 30 million years earlier than thought

Left molars from the newly discovered Australopithecus specimen (top) compared to those of an A. afarensis (bottom)

Cool Finds

Researchers Discover Fossilized Teeth That May Have Come From an Unknown Hominin Species

The find suggests that as many as four different hominin lineages lived in eastern Africa between 2.5 million and 3 million years ago

Early whales walked on land and swam in the shallows to hunt.

Before Whales Took to the Sea, These Ten Species Walked on Land

The creatures, which ranged in size from that of a fox to more than 50 feet long, divided their time between the coast and the water

Floods caused devastation across central Texas in July. In one area, volunteers responding to the disaster found newly uncovered dinosaur tracks.

Volunteers Discover 115-Million-Year-Old Dinosaur Tracks Revealed in the Wake of Devastating Texas Floods

Fifteen large prints were probably left behind by meat-eating dinosaurs, and they were revealed as floodwaters washed away dirt in early July

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