Three-part science series presented by pediatrician Dr Guddi Singh, bringing together over 200 babies and scientists from around the world to take part in one of the most ambitious scientific studies about babies ever attempted. With cutting-edge experiments we explore how the incredible changes that happen in the first two years of life make us who we are. Episode two looks at the latest research into how we build social relationships. The team set up a series of experiments about how babies become social and learn to relate to the people around them. Starting with a fundamental question - how do we make our very earliest connections with others? Do we have to learn or are we programd to bond from birth? To find out, the show heads out to the home of a newborn baby, just one week old. This episode also explores the bonds which babies make to other people and how they decided who to trust, how adults react to a baby's cry, the effect and purposes of laughter, the development of self-recognition and how babies develop and display empathy.

Originally released by BBC Worldwide Learning, 2018. Streaming video file encoded with permission for digital streaming by Infobase on November 21, 2019.