UTRECHT, Netherlands — Every child who’s ever been fascinated by dinosaurs has wondered: Was it the asteroid or the volcanoes that spelled doom for Earth’s most magnificent creatures?

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 ...

Part of the debate about what really killed the dinosaurs has to do with the interplay ... it should have affected volcanoes elsewhere, too. That's why the authors of this study decided to trace ...

We're getting closer to knowing what killed the dinosaurs. And so, for now, we can be satisfied maintaining several viable hypotheses. It's likely that one of them -- or all of them in combination ...