‘Mass Extinction’ vivifies the science of die-offs
Documentary explores causes of dinosaur disappearance, ‘Great Dying’
![cliffs in Spain](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/11/review_spain.jpg?fit=860%2C573&ssl=1)
These rocks in Spain helped geologists determine what killed the dinosaurs.
© HHMI J.B. Spector/Museum of Science and Industry
Documentary explores causes of dinosaur disappearance, ‘Great Dying’
These rocks in Spain helped geologists determine what killed the dinosaurs.
© HHMI J.B. Spector/Museum of Science and Industry