Born and raised in Villa de Leyva, Colombia, Dirley Cortés used to come home from family walks with her pockets full of rocks from the fossil-rich area around her small hometown. Her family, full ...

Over 66 million years ago, the Chicxulub meteorite crashed into planet Earth on the Mexican Yucatán Peninsula. It had a diameter of about 10 kilometers (6 miles, or the size of a mountain) and ...

Previously, scientists had suggested the presence of another brachiosaurid sauropod dinosaur called Padillasaurus much further afield in what is now South America, in the Early Cretaceous. However, ...

Previously, scientists had suggested the presence of another brachiosaurid sauropod dinosaur called Padillasaurus much further afield in what is now South America, in the Early Cretaceous.