Main Street Columbus presents ‘Unchanged – Survivors from the Cretaceous: Creatures That Are Stayin’ Alive! Stayin’ Alive!’ Learn about the unique and interesting creatures that still roam the Earth from the Cretaceous period (145.5 million years ago to 66 million years ago) and more! Speaker: Steve Zuppa, Educational Video Producer. For more information, call 662-328-6305 or email [email protected].