Scientists still debate the purpose of this dinosaur's iconic horns and spiky head plate. Find out what we’ve learned about how Triceratops lived and why it went extinct.

A new study suggests the Chicxulub asteroid generated extreme atmospheric heat that may have ignited global wildfires and ...

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 ...

An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the impacts of this ancient event, scientists hope to ensure that mussels, ...

This is read by an automated voice. Please report any issues or inconsistencies here. Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million ...

NEW MEXICO (KRQE) — The extinction of the dinosaurs may be ancient history, but that history continues to be rewritten, thanks in part to a professor at New Mexico State University. As Chad Brummett ...

For much of the 20th century, the extinction of the dinosaurs had been considered a mystery without a single explanation. The debate centred on whether the dinosaurs were declining due to gradual ...

It struck the seas off the coast of Mexico's Yucatán Peninsula with the force of billions of atomic bombs, carving out the 112-mile-wide Chicxulub crater. The asteroid vaporized almost instantly.