In Part 2, we continue our discussion with Dr. Warren "Rennie" Miller regarding the importance of bonding and building relationships.  Rennie walks us through the biology of bonding, from perception of the other person to our decision to act on intentions regarding building a relationship with that person.  We also explore sexual and romantic bonding, their similarities and differences and how they relate to reproduction.  to view more of Rennie's work, please visit the Transnational Family Research Institute at www.tfri.org.