From Agriculture to the Atom Bomb: Has Human Activity Forced Earth into a New Geologic Epoch?
For decades millions of visitors wound their way underneath the towering skeletons of Tyrannosaurus rex and Triceratops at Washington, D.C.'s Museum of Natural History. Now, the National Fossil Hall has closed as curators work on a revamped exhibition, tentatively titled “Deep Time,†set to open in 2019. Alongside the dinosaur skeletons that have long dominated