Dr. Paul Ehrlich is  Bing Professor of Population Studies Emeritus, President of the Center for Conservation Biology,  Department of Biology, Stanford University and Adjunct Professor, University of Technology, Sydney.  He is the author and coauthor of more than 1100 scientific papers and articles in the popular press and over 40 books.  Dr. Ehrlich has appeared as a guest on more than 1000 TV and radio programs; he also was a correspondent for NBC News. He has given many hundreds of public lectures in the past 50 years.

Dr. Sandra Kahn, D.D.S., M.S.D. is a graduate from the University of Mexico (UNAM) and the University of the Pacific in San Francisco CA. She has done graduate work in the area of physical anthropology at the University of California in Berkeley. Recently she retired from traditional orthodontics to focus in Airway Centric orthodontics and pediatric Obstructive Sleep Apnea prevention using Forwardontics. Her approach is to promote harmony of the jaws and not just straightening teeth as it’s done in traditional orthodontics.Doctor Kahn is an international lecturer and has published 3 books, Let’s Face it  - a guide to your child’s optimal health, facial and dental development; and GOPex – Good Oral Posture Exercises - Your guide to being healthier, growing stronger and having straighter teeth! And Jaws: The Story of a Hidden Epidemic. Her personal interest include conservation. She and her husband own Playa Viva, an ecoresort in Mexico and they have started a non-profit to protect jaguar habitat called Rainoforest2Reef.