Titanosaurs were some of the largest animals to walk the Earth, but if the reign of the dinosaurs hadn't been cut short by an asteroid, could they have evolved to be even bigger?

Scientists have discovered the tell-tale signs of a range of dinosaur diseases – and found that they're remarkably similar to those affecting animals alive today.

Hidden within North America is a long-forgotten continent once ruled by a bizarre cast of dinosaurs – but only a handful of fossils have ever been found.

As two warring bone hunters sought to destroy each other, they laid the foundations for our knowledge of dinosaurs.

We tend to associate dinosaurs with ground-shaking roars, but the latest research shows that this is probably mistaken and they probably sounded very different.

There's mounting evidence that some dinosaurs lived among snow and ice. How did they do it?

If the world's most notorious carnivore had survived the mass extinction that killed the dinosaurs 66 million years ago, it might have eventually lost its arms altogether.

Sixty-six million years ago, our ancestors lived through the most violent event in the Earth's history. How did small, insignificant mammals survive a doomsday asteroid?