Why does our modern world remain so violent? Explorer's Inside the Warrior Gene examines the work of a new breed of scientists who believe the answer may lie not in society, but in our DNA.

Cast

Alastair Bayardo

Adult Gilbert

Daniel Van Dyke

Dr. Han G. Brunner

David Fernandez Jr.

Self

Gabriela Fresquez

Cheating Wife

Matt Horwich

Self

Lola Kelly

Abused Sister

Henry Rollins

Self