Massive beds of ancient lava found around the world depict an ... decline in the number of dinosaur species would likely mirror an equally gradual cause of their ultimate extinction.

Have you ever wondered what it would be like travel back in time to the age of dinosaurs? If you stumble ... and in our ...

But some scientists say that, slow or not, this repositioning of the world's landmasses ... the number of dinosaur species would likely mirror an equally gradual cause of their ultimate extinction.