With a bill like a duck but teeth like a croc’s, a swanlike neck and killer claws, a new dinosaur species uncovered by scientists looks like something Dr. Seuss could have dreamed up. By Seth Borenstein.

Fragments of DNA may be preserved in the fossil of the pregnant T. rex.

In a world first, paleontologists working in northwestern China have discovered a cache of hundreds of ancient eggs laid by pterosaurs, the flying reptiles that lived alongside the dinosaurs. Some of the eggs contain the most detailed pterosaur embryos ever found.

The well-preserved eggs illuminate how the winged reptiles bred—and how their babies may have behaved.

Since the 1800s, paleoartists have tried to imagine what prehistoric creatures looked like—with wildly different results.

New discoveries are changing long-held views of the biggest, meanest, and most bizarre animals that ever flew.

The rare frilled shark is considered a “living fossil,” as its makeup has remained unchanged for 80 million years. This summer, researchers found one alive and thriving off the coast of Portugal, adding evidence regarding the resilience of this ancient sea creature. The shark was discovered off the Algarve coast by researchers who were working on a European Union project in the area, the BBC reported. The aim of the project was to "minimize unwanted catches in commercial fishing," but the team unknowingly unearthed one of the rarest and most ancient animals on the planet.

A dinosaur from China had a "bandit mask" pattern in the feather on its faces, fossil analysis has shown.

Scientists are hailing this prehistoric dinosaur as the “best-preserved dinosaur on Earth.” In fact, it is so well-preserved that it cannot be defined as a fossil. This magnificent ancient 18-foot-long specimen has been called a genuine “dinosaur mummy.”

A remarkable new fossilized skeleton of a tyrannosaur discovered in the Bureau of Land Management’s Grand Staircase-Escalante National Monument (GSENM) in southern Utah was airlifted by helicopter Sunday, Oct 15, from a remote field site, and delivered to the Natural History Museum of Utah where it will be uncovered, prepared, and studied. The fossil is approximately 76 million years old and is most likely an individual of the species Teratophoneus curriei, one of Utah’s ferocious tyrannosaurs that walked western North America between 66 and 90 million years ago during the Late Cretaceous Period.

We know that dinosaurs ruled the Earth many millions ago, but how they walked has been a mystery. Our new research shows that the movement of some dinosaurs has a lot in common with some of today’s ground-dwelling birds. We looked at theropod dinosaurs, which were typically bipedal (two-legged), walking on their hind legs like Tyrannosaurus rex.

Borealopelta, discovered accidentally by Canadian miners, is one of the most spectacular fossil finds of all time. 

We're still making many discoveries about the animals that roamed the Earth more than 66 million years ago, and a newly identified dinosaur bears a remarkable resemblance to a modern-day bird, the cassowary .

A newly identified bird-like dinosaur has a head crest that is uncannily similar to the crest of a cassowary. By Laura Geggel.

The huge diversity of frogs we see today is mainly a consequence of the asteroid strike that killed off the dinosaurs, a study suggests.

A new species of a fossil pliosaur (large predatory marine reptile from the ‘age of dinosaur’) has been found in Russia and profoundly change how we understand the evolution of the group, says an international team of scientists.

Paleontologists calculated the bite force of the fearsome prehistoric predators and provided more evidence that they were opportunistic scavengers. By Nicholas St. Fleur.

The team is making its case after drilling into the asteroid crater that coincides with the animals' disappearance.

How different Earth's history might have been if the space rock had struck a different location.

The 110 million-year-old fossil of a nodosaur preserves the animal’s armor, skin, and what may have been its final meal. By Michael Greshko.