Journey Of The Universe: Conversations, Episode 8, The Origin of the Human
directed by David Kennard and Patsy Northcutt; produced by David Kennard and Patsy Northcutt, Yale School of Forestry & Environmental Studies and Northcutt Productions; interview by Mary Evelyn Tucker, in Journey Of The Universe: Conversations, Episode 8 (Pottstown, PA: Music Video Distributors, 2013), 31 mins