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Paleontologists

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

Darla Zelenitsky (right) and Jared Voris (left) were part of the team that identified and named Khankhuuluu based on fossils found in Mongolia during the 1970s.

These ‘Dragon Prince’ Fossils Spent Decades in Museum Drawers. Now, They Could Rewrite the T. Rex Family Tree

Two partial skeletons housed in a Mongolia museum were reexamined by researchers and found to represent a previously unknown species

In this artist's impression of Diamantinasaurus matildae, the animal feeds from a conifer tree.

First Fossil Evidence That Sauropods Were Herbivores Supports a Widespread Assumption About the Long-Necked Dinosaurs

A recent discovery of a dinosaur’s preserved gut contents offers the first direct proof that sauropods were plant-eaters

Studying foraminiferan fossils can help us understand how the climate may change in the future.

These Tiny, Beautiful Fossils Detail the History of the Ocean

Bountiful remains of foraminifera reveal how organisms responded to climate disturbances of the past

This skull of a 1.8-million-year-old Paranthropus robustus individual was unearthed in South Africa, but it was not one of the fossils included in the study.

Scientists Investigate 2.2-Million-Year-Old Tooth Enamel to Unravel the Mysteries of Ancient Human Relatives

By studying proteins preserved in teeth, researchers determined the sex of four Paranthropus robustus individuals that lived in southern Africa

Amateur fossil hunters discovered a trackway left by a creature that might have looked like the one in this illustration. The finding raises new questions about the evolution of the earliest reptiles.

Fossil Hunters Discover Earliest Known Footprints of a Reptile-Like Creature, Pushing Back the Timeline of Their Evolution

A new study suggests two fossil trackways found in Australia were made by an early amniote, a group that today includes reptiles, birds and mammals

The Chicago Archaeopteryx, seen under UV light, shows soft tissues alongside the skeleton.

The Famous, Feathered Dinosaur Archaeopteryx Could Fly, Suggests New Study of a ‘Beautifully Preserved’ Fossil

The Chicago Archaeopteryx features more soft tissue and delicate skeletal details than any known fossil of its kind, and paleontologists discovered it has a set of feathers key to flight in modern birds

Argentine black and white tegus (Salvator merianae) were brought to the United States in the 1990s by exotic pet traders. They've since proliferated in the wild and been deemed an invasive species.

Mysterious Fossil Found in Museum Storage Turned Out to Be a New, Extinct Lizard Species

Today, tegus are considered invasive creatures in Florida, but a new paper suggests they’ve lived in the southeastern United States at least once before—millions of years ago

Crocodile-like sebecids were known to roam South America after dinosaurs went extinct. Recently found fossils suggest they inhabited the Caribbean as well—and thrived there long after they disappeared on the continent.

Fossils Reveal Enormous, Crocodile-Like Reptiles Survived for Millions of Years Longer Than Previously Thought

New discoveries in the Dominican Republic suggest sebecids roamed the Caribbean as recently as 4.5 million years ago, long after they vanished from South America

A Haast’s eagle attacks a moa pair.

Why Have Birds Never Gotten as Big as T. Rex?

Even the most massive birds have never reached the sizes of their dinosaur relatives

New research suggests that land-based echidnas descended from semi-aquatic mammals. 

A Single Prehistoric Bone Might Rewrite the History of the World’s Strangest Mammals

Analysis of the fossil suggests that the only two egg-laying mammals, platypuses and land-based echidnas, both descended from a semi-aquatic creature

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

An artist's impression of the Late Cretaceous crocodilian Deinosuchus riograndensis and a much smaller, early alligator relative.

The Ancient ‘Terror Crocodiles’ of North America Weren’t Alligators After All, DNA and Fossils Suggest

A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously thought, and it might have thrived by tolerating saltwater

Fossils indicate a variety of marine reptiles swam through ancient seas.

From Massive Eyes to Shark-Like Tails, Seven Amazing Adaptations That Helped Prehistoric Reptiles Thrive at Sea

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and the ability to birth live young

A species of remipede known from the Caicos Islands. The photograph was taken by a member of a multinational team looking for rare species. Remipedes are crustaceans that are close relatives to insects.

You Might Think of Shrimp as Bugs of the Sea. But a Remarkable Discovery Shows the Opposite: Bugs Are Actually Shrimp of the Land

A recent study suggests that insects branched out from crustaceans on the tree of life

An artistic rendering of the carnivorous theropods and herbivorous sauropods that left tracks at the same Scottish site.

‘Important’ Dinosaur Tracks Found in Scotland Suggest Carnivores and Their Prey Drank From the Same Watering Hole

Researchers analyzed 131 fossilized impressions on the Isle of Skye, some of which were previously considered fish burrows

A skull of the Triassic amphibian Buettnererpeton bakeri gets uncovered for the first time in 230 million years. Researchers found it in a cache of skeletons that were well-preserved and appear to be relatively undisturbed over time.

Enormous, Crocodile-Sized Amphibians Mysteriously Died Together in Wyoming 230 Million Years Ago

Paleontologists found a group of four-legged Triassic creatures preserved in the same bone bed—but they don’t know what killed the animals

The tusks of ancient elephants came in a variety of shapes and sizes.

Ten Exceptional Ancient Elephants, From Small Swimming Creatures to Shovel-Tusked Beasts

A wide variety of the exotic animals evolved on Earth over the past 60 million years

In the Gobi Desert, scientists discovered two fossilized claws of a large, feathered dinosaur now called Duonychus tsogtbaatari.

Cool Finds

Dinosaur With Two Massive, Sloth-Like Claws Is on ‘Another Level’ of Weird—Even Among Its Unusual Group of Relatives

Paleontologists discovered Duonychus tsogtbaatari from fossils uncovered in 2012. It was a giant, feathered creature adapted to grasp and feed on vegetation

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