How the Egg Came First
Show: Eons --> Season: 4 - Season 2020
AirDate: 3/25/2020
Runtime: 10
Voting: 0 (0)

Overview: The story of the egg spans millions of years, from the first vertebrates that dared to venture onto land to today’s mammals, including the platypus, and of course birds. Like chickens? We’re here to tell you: The egg came first.