Paul Giamatti

~ as ~

Narrator (voice)

Akito Kawahara

~ as ~

Self - Florida Museum of Natural History

Jesse R. Barber

~ as ~

Self - Boise State University

Mary Jane Epps

~ as ~

Self - Mary Baldwin University

Aaron Pomerantz

~ as ~

Self - PhD. Student at the University of California

Constantí Stefanescu

~ as ~

Self - Natural History Museum of Granollers

Jason Chapman

~ as ~

Self - Rothamsted Research

Peter R. Houlihan

~ as ~

Self - Biologist (uncredited)