Did a collision ... of not just the dinosaurs, but of up to 70 percent of all plants and animals living at the time. This 150-kilometer-wide crater lies just off the Yucatan peninsula.

DINOSAURS survived a spate of violent volcanic eruptions often blamed for their extinction, a study has found. It adds further weight to the belief that they were killed off by an asteroid ...

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 ...