How does a baby see the world before birth? From one perspective, the baby’s world is the placenta. It protects the fetus, delivers nutrients and oxygen, removes carbon dioxide and other waste, and provides the fetus with its early immunity.

Animation produced by Visible Productions Inc.

Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.