1:04Study: 'Extraterrestrial' asteroid impact caused ice age and wildfires 13K years agoOctober 28, 2019
:49College student finds 65-million-year-old fossil of Triceratops skull in North Dakota badlandsJuly 26, 2019
1:36Inside the Smithsonian National Museum of Natural History's newly renovated dinosaur hallJune 7, 2019