The fingers of Repenomamus are locked tightly around the dinosaur's jaw and its teeth are sunk deep into the ribs of Psittacosaurus. This fossilized scene seems to capture a fight ...

When the massive space rock that slammed into the Earth some 66 million years ago reached our planet it caused one heck of a scene ... countless underwater volcanoes to spontaneously spring ...

Dinosaurs were not exactly how we imagined them! These 8 groundbreaking fossil discoveries have completely changed what we ...

Did dinosaurs lose their dominance suddenly or gradually? Some scientists think the answer lies locked within the remnants of long-dormant volcanoes. Massive beds of ancient lava found around the ...

Ultimately it’s very difficult to determine which environmental factors were most responsible for the mass dying off dinosaurs and other ancient species. Some may have died out from poisoning ...

Roughly 201 million years ago, drastic changes extinguished many forms of life and led to conditions that allowed the terrible lizards to thrive Riley Black Science Correspondent Dinosaurs only ...

Randall has authored several books, including the recent "Dark Matter and the Dinosaurs." Produced by Ruchika Agarwal Follow BI Video: On Facebook More from Science Harvard Physicist Lisa Randall ...