Dinosaurs weren't in decline when an asteroid smashed into Earth and wiped them out, scientists say. Instead, the idea that dinosaur diversity was declining before the asteroid struck 66 million years ...

A newly described dinosaur that appears to have persisted beyond a catastrophic die-off is forcing scientists to rethink how mass extinctions actually play out on the ground. Instead of a clean break ...

Virginia’s budget will change before it’s adopted. Here’s what the total operating budget of just under $200 billion includes. Virginia's budget will change before it's adopted. Here's what the total ...

Dinosaurs ruled the Earth for over 150 million years. Compared to the mere 4–6 million years that scientists believe humans and their earliest ancestors have been on the planet, it wouldn’t be ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed flourishing communities. Alamosaurus was one of the last dinosaurs from ...

Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, according to scientists. Their study, based on a review of decades of research on ...

Recent fossil discoveries in New Mexico have provided compelling evidence that dinosaurs were thriving just before the asteroid impact that led to their extinction 66 million years ago. These fossils, ...

Hans Sues currently receives funding from the Smithsonian. Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Dinosaurs had such an immense impact on Earth that their sudden extinction led to wide-scale changes in landscapes—including the shape of rivers—and these changes are reflected in the geologic record, ...