Zoologist's Guide to the Galaxy w/ Arik Kershenbaum

In this episode of Talk Nerdy, Cara is joined by Dr. Arik Kershenbaum to talk about his new book "The Zoologist's Guide to the Galaxy: What Animals on Earth Reveal About Aliens--And Ourselves." They discuss some of the defining features of life and how we might recognize them elsewhere in the universe. Follow Arik: @arikkershenbaum