Dinosaurs

American crocodiles haven't been known to reproduce via parthenogenesis—until now.

Scientists Record the First 'Virgin Birth' in a Crocodile

A female American crocodile living in captivity reproduced without a mate—a finding that suggests dinosaurs might have done the same thing

Iani smithi

New Beaked Dinosaur Species Found in Utah

The creature, dubbed Iani smithi, was identified from a 99-million-year-old fossil

An illustration of the giant gorgonopsian Inostrancevia scaring off the much smaller African species Cyonosaurus

During the 'Great Dying,' This Saber-Toothed Predator Reigned

This ancestor of mammals briefly thrived amid a massive extinction event, hinting at how carnivores may respond to climate change today

The T. Rex skeleton, named Trinity, in a photograph taken March 28. The skeleton's 293 bones come from three different specimens.

T. Rex Skeleton Sells for More Than $5 Million at Auction

Just over half the skeleton is made of actual fossils, which come from three different specimens

An illustration of Diamantinasaurus matildae

Rare 95-Million-Year-Old Dinosaur Skull Uncovered in Australia

The first-of-its-kind find reveals how sauropods may have moved between Australia and South America during the mid-Cretaceous

The Tyrannosaurus rex may have had lips.

T. Rex Had Lips That Concealed Its Teeth, Study Says

Paleontologists say popular, toothy depictions of the dinosaur may have missed the mark

Many of the reptiles that thrived during the Triassic were crocodile relatives that dinosaurs would later mimic through evolutionary happenstance, such as Postosuchus (back) and Desmatosuchus (front).

Dinosaurs Were Evolutionary Copycats of These Long-Lost Look-Alikes

Before T. rex and ankylosaurus ruled the Earth, a host of similar Triassic reptiles reigned

A rendering of Mamenchisaurus sinocanadorum dinosaurs with their 50-foot-long necks.

This Dinosaur Had a 50-Foot-Long Neck, Scientists Say

They compared vertebrae discovered in 1987 to more complete remains to make this new estimate

Adam Driver stars in the new movie 65.

What Earth Would Have Really Looked Like in Adam Driver's '65'

If you were to travel back in time you’d find a mix of the familiar and strange on our planet

An artist's representation of the dinosaur that left the footprint

Squatting Dinosaur Left Behind a Huge Footprint in England

An archaeologist accidentally came across the fossil that was preserved for 166 million years

Five images display (A) an unhatched egg, (B) a circular outline of a possibly unhatched egg, (C) a compressed egg showing hatching window (arrow) and eggshells collected around the hatching window (circled), (D) an egg showing a curved outline, and (E) a deformed egg showing egg surfaces slipping past each other.

Scientists Uncover Nearly 100 Dinosaur Nests in Fossilized Hatchery

The find reveals that plant-eating titanosaurs had reproductive similarities to both birds and crocodiles

Tyrannosaur fossils show the animals squared off and bit each other in the face.

Busted and Broken Fossils Show How Dinosaurs Fought

From locking horns to biting each other in the face, this is how dinos of the same species battled

After the American Revolution, why did the colonies keep their British nobility namesakes?

Why Did the American Colonies Keep Their British Names After the Revolution?

You've got questions. We've got experts

The small mammal's foot in the fossil of the microraptor.

This 120-Million-Year-Old Dinosaur Fossil Had a Mammal Hiding in Its Stomach

The finding represents only the second recorded instance of a dinosaur consuming a mammal

The year was filled with major discoveries about a number of species.

The Top Ten Dinosaur Discoveries of 2022

From scientists uncovering the first dinosaur built to swim to finding a new species that looked a lot like T. rex, these were the year's biggest stories

Giving a nod to previous human flight and exploration is a tradition of space travel.

Ten Strange and Amazing Historical Artifacts We’ve Launched to Space

As spaceflight catapults us into a high-tech future, several missions have made sure to honor the past

This year’s picks include Fresh Banana Leaves, Origin and Starry Messenger.

The Ten Best Science Books of 2022

From a detective story on the origins of Covid-19 to a narrative that imagines a fateful day for dinosaurs, these works affected us the most this year

A cast of Patagotitan mayorum's skull

This 122-Foot-Long Dinosaur Will Barely Fit in London's Natural History Museum

The replica titanosaur, based on fossils discovered in 2012, goes on view in March

Artist’s reconstruction of Janavis finalidens

How a 67-Million-Year-Old Fossil Turned the Theory of Bird Evolution Upside-Down

A skull bone suggests prehistoric birds could move their upper beaks, much like most modern birds

Natovenator likely swam to catch small prey.

World’s First Swimming Dinosaur Discovered in Mongolia

Natovenator was a streamlined hunter with jaws full of tiny teeth

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