Tragedy for Dinosaurs, Opportunity for Mammals

Now watching

Next video starts in : 7 Play

Tragedy for Dinosaurs, Opportunity for Mammals

Tragedy for Dinosaurs, Opportunity for Mammals
Replay video
Up next

Maryland Gov. Declares State of Emergency

Unlock your personal NFL Now stream by signing in to NFL.com

Tragedy for Dinosaurs, Opportunity for Mammals

by Associated Press Videos 1:29 mins

New research pinpoints how the torch passed from one dominant type of creature on Earth to another, from the brutish dinosaur to the crafty mammal. (Feb. 7)

View Comments (0)