Paleontologists

An artist's reconstruction of Spinosaurus, showing a paddle-like tail that would have helped it swim.

Groundbreaking Fossil Suggests Spinosaurus Is First Known Swimming Dinosaur

Its paddle-like tail, unearthed in Morocco, suggests the Cretaceous carnivore ventured into the water to hunt

Stromatolites at Lake Thetis, Western Australia

Why It’s So Difficult to Find Earth’s Earliest Life

Debate over Earth’s oldest fossils fuels the search for our deepest origins

An artist’s depiction of Gunakadeit joseeae

215-Million-Year-Old, Sharp-Nosed Sea Creature Was Among the Last of Its Kind

Researchers gave the marine reptile the genus name <u>G</u>unakadeit in honor of a sea monster from Tlingit oral history

Mulleriblattina bowangi, a cockroach that lived in caves during the Cretaceous

Oldest Known Cave-Dwellers Are 99-Million-Year-Old Cockroaches

The pale-bodied pests belong to a family that’s still around today

An artist's impression of a pterosaur trying and failing to snag a cephalopod from the ocean

Pterosaur Tooth Found in Rare Ancient Squid Fossil

A tooth embedded in prehistoric cephalopod offers a glimpse into predator-prey interactions from 150 million years ago

An artist's illustration of Allosaurus jimmadseni, a newly described species of Jurassic carnivore

Newly Described Meat-Eating Dinosaur Dominated During the Jurassic Period

The new species is the oldest Allosaurus described yet and was a top predator of its time

A fossil of Parioscorpio venator, a 437-million-year-old scorpion that resembles modern species.

World’s Oldest Scorpions May Have Moved From Sea to Land 437 Million Years Ago

A pair of pristinely preserved fossils suggest scorpions have looked mostly the same since they first crawled onto land

To 17th-century scholars, it made perfect sense that fossils on mountain sides and deep in the ground had been left there in the wake of the biblical flood (above The Subsiding of the Waters of the Deluge by Thomas Cole, 1829).

Why This 18th-Century Naturalist Believed He’d Discovered an Eyewitness to the Biblical Flood

Smithsonian paleontologist Hans Sues recounts a colossal tale of mistaken identity

An artist's illustration of juvenile Tyrannosaurus rex, which were more fleet-footed than their adult counterparts

Teenage T. Rex Fossils Reveal Haphazard Growth Spurts

A new study reaffirms that two debated dinosaur fossils named Jane and Petey weren’t a separate species

These are ten of the biggest strides made by scientists in the last ten years.

The Top Ten Scientific Discoveries of the Decade

Breakthroughs include measuring the true nature of the universe, finding new species of human ancestors, and unlocking new ways to fight disease

Short-finned pilot whale, Globicephala macrorhynchus, underwater off Isla San Marcos, Baja California Sur, Mexico.

Ancient Whale Fossil Helps Detail How the Mammals Took From Land to Sea

A 39-million-year-old whale with floppy feet, which may not have been very good for walking, helps illuminate the massive animals' transition to the oceans

Artist‘s reconstruction of Mesophthirus engeli of elder development stage feeding on the dinosaur feathers from mid-Cretaceous amber.

Lice-Filled Dinosaur Feathers Found Trapped in 100-Million-Year-Old Amber

Prehistoric insects that resemble modern lice infested animals as early as the mid-Cretaceous, living and evolving along with dinosaurs and early birds

Life restoration of Fukuipteryx prima.

Newly Discovered Fossil Bird Fills in Gap Between Dinosaurs and Modern Fliers

A skeleton from the Cretaceous found in Japan reveals an early bird with a tail nub resembling the avians of today

The 21 bones of the most complete partial skeleton of a male Danuvius guggenmosi.

New Ancient Ape Species Rewrites the Story of Bipedalism

<i>Danuvius guggenmosi</i>, a “totally new and different” species of ape, would have moved through the trees using its forelimbs and hindlimbs equally

CGI rendering of ancient Loxolophus mammal taken from the PBS NOVA special, Rise of the Mammals. In this recreation, Loxolophus scavenges for food in the palm dominated forests found within the first 300,000 years after the dinosaur extinction.

Fossil Site Reveals How Mammals Thrived After the Death of the Dinosaurs

Recent discoveries highlight how mammals lived before and after the asteroid impact that triggered the world's fifth mass extinction

Artists reconstruction of Phoebodus sharks.

This Ancient Shark Looked Like an Eel and Swallowed Its Prey Whole

Scans of a rare 360-million-year-old shark skeleton shows the beasts used hunting techniques similar to modern sharks and fish

The skull of the 1.77-million-year-old Stephanorhinus rhino.

1.7-Million-Year-Old Rhino Tooth Provides Oldest Genetic Information Ever Studied

Researchers read the proteins preserved in the tooth enamel of an ancient rhino, a trick that may allow them to sequence fossils millions of years old

Massive 'Ice Dragon' Ruled the Skies Above Ancient Alberta

The newly described pterosaur with a wingspan over 30-feet was one of the largest flying creatures to ever exist

At right is a left front foot followed by the hind foot of the mysterious Chirotherium, or "hand beast." The tracks were first found in the German town of Hildburghausen.

The Long, Strange Tale of the Hand Beast Footprints

A Triassic creature left curious tracks in the sandstone; it took decades to unravel the mystery

Using heavy picks, Smithsonian researchers in 1923 worked on excavations in Dinosaur National Monument on the border of Colorado and Utah.

How to Discover Dinosaurs

Smithsonian paleontologist Hans Sues reveals some of his tips for finding and excavating a Mesozoic monster

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