The new Argentine dino might give us clues to what the world was like before the asteroid wiped out their kind.

Chadititan calvoi, or the “titan of the salt,” was a “very small and gracile-built” titanosaur compared to other related species, according to the study. Thousands of new species are found ...

In this slow-growth model, even the smallest titanosaurs would have taken nearly a century to reach their full size, meaning they would have been relatively small for a good chunk of their lives.

With their small brains and enormous bodies, these creatures have long been the poster children for animals destined to go extinct. But recent discoveries have completely rewritten the doomed sauropod ...

A replica fossil of the titanosaur _Patagotitan_, one of the largest dinosaurs ever discovered. It would have weighed about 70 tons (63.5 metric tons.) Spencer Platt/Getty Images News via Getty Images ...