The Grandmother Hypothesis (extended version) : Grandmothers as the Longevity Lifeboat of the Human Race

Welcome to Grandmothers on the Move! I’m your host, Ilana Landsberg-Lewis, and today I have the great honour to speak with Dr. Kristen Hawkes, the brilliant originator of THE GRANDMOTHER HYPOTHESIS: How grandmothers played a pivotal role in the evolution and very continuation of our species.  What we've always suspected!  Here is a scientific, anthropological and deeply fascinating hypothesis... deeply satisfying too! 
This is the extended version of the interview - a longer, much more in-depth discussion which anthropology, ethnography and evolutionary biology buffs will find worth listening to!