Mark A. Norell, chair of the Division of Paleontology at the American Museum of Natural History, addresses the question: How long were dinosaurs' lifespans?

Birds living today are dinosaurs and often have brilliantly colored plumage. Did extinct dinosaurs also sport vibrant hues? Learn more from Mark A. Norell, chair of the Division of Paleontology, in a video.

A whale of a tale! In a video, get the inside view from Museum curators about our newest exhibition, Whales: Giants of the Deep, which opens Saturday, March 23, 2013.

A video series on amnh.tv delves into the topic of dinosaurs, which arose some 230 million years ago and thrived until large dinosaurs became extinct about 65 million years ago. How did dinosaurs reproduce? A video explains.