Dinosaurs
Giant Sea Lizards Ruled the Waves While T. Rex Roamed on Land
A new fossil discovery shows marine reptiles called mosasaurs lived up until the asteroid impact that killed non-avian dinosaurs
Paleontologists Unearth the Oldest Evidence of Herd Behavior in Dinosaurs
Fossils found in an ancient nesting ground reveals that herd mentality is almost 200 million years old
New, Giant Carnivorous Dinosaur Was a Terror to Smaller Tyrannosaurs
A fossil jaw reveals the large predator lived 90 million years ago
Near-Complete Pterosaur Skeleton Obtained in Police Raid Reveals Stunning Details About the Species
The winged reptile's anatomical features hint that it may have foraged around like a chicken and flown short distances to escape predators
'Which Came First: Beer or Wine?' and More Questions From Our Readers
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Giant, Dragon-Like, Flying Reptile Fossil Discovered in Australia
A rare specimen reveals a new species of pterosaur with a staggering 23-foot wingspan
Tyrannosaurs Dominated Their Cretaceous Ecosystems
Studies of body size and bite force show that the predators, from babies to adults, filled many niches in their environment
Mile-High Tsunami Caused by Dinosaur-Killing Asteroid Left Behind Towering 'Megaripples'
Seismic imaging data depicts 52-feet high waves 5,000 feet below Louisiana
Other Mammals, Not Dinosaurs, Kept Our Ancestors Down
The asteroid impact that ended the Cretaceous gave our mammalian ancestors, the therians, an edge over their mammalian competitors
Dinosaurs May Have Been Declining Before the Asteroid Struck Earth
The researchers say the cataclysmic impact may have simply been the final nail in the dinos’ coffin
New Species of Beetle Found in 230-Million-Year-Old Feces
The insect is older than any amber-encased specimen, and may inspire scientists to look for more insects in fossilized dung
Dinosaurs Nested in the High Arctic
Tiny fossils of polar dinosaurs suggest that the reptiles stayed year-round
New Research of Impact Crater Blows Away Previous Estimates of Its Age
Scientists say the Boltysh crater in Ukraine formed well after the impact in Mexico that caused the dinosaurs to go extinct
Don't Miss These Objects When the Smithsonian's Natural History Museum Reopens
See everything from a giant replica of a mosquito, to an Allosaurus fossil, to a pink fairy armadillo when the museum opens June 18
World's 'Smallest Dinosaur' Revealed to Be a Mystery Reptile
Paleontologists analyzed two skulls and made the call, but aren't sure about the exact type of animal they've discovered
Two Farmers Found the Largest Dinosaur Ever Unearthed in Australia
The long-necked herbivore's length measured the span of a basketball court, stood at two stories, and weighed an estimated 70 tons
Dinosaurs Evolved Flight at Least Three Times
A new study finds that many feathered dinosaurs were more aerodynamic than previously thought
Meet Cassowary Brothers Irwin and Dundee, Descendants of Dinosaurs
This giant bird is considered to be the dinosaurs’ closest living relative
Big Eyes and Long Inner Ears Helped This Tiny, Owl-Like Dinosaur Hunt at Night
The chicken-sized Shuvuuia dinosaur had a fragile, birdlike skull, one-clawed hands and long skinny legs
An Ode to the World's Most Average Dinosaurs
They lacked the gargantuan size and spikes of the species museums often celebrate, but these species are how paleontologists learn about the Mesozoic
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