Are humans unique or do we just do some things a little better than other species? In the first of our two-part series on the nature of humanity: how the influence of others has shaped our evolution.
Find out how baby talk gave root to human language and why social isolation can make us sick. Plus, the joke’s on us – new research says we’re not the only laughing species: meet your giggling gorilla cousins.
And, what a writer’s visit to a chimp retirement center revealed about human discomfort with our animal ancestry.

Dean Falk - Anthropologist at Florida State University and author of Finding Our Tongues: Mothers, Infants, and the Origins of Language
John Cacioppo - Director of the Center for Cognitive and Social Neuroscience at the University of Chicago and co-author of Loneliness: Human Nature and the Need for Social Connection
Lori Marino - Biologist at Emory University
Kathryn Denning - Anthropologist at York University
Charles Siebert - Author of The Wauchula Woods Accord: Toward a New Understanding of Animals
Marina Davila-Ross - Psychologist at the University of Portsmouth in the U.K.

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