Along the wild edges of the Earth, against a stunning backdrop of aerial, underwater, and wildlife photography, evolutionary biologist Armand Leroi leads us on an unforgettable journey retracing the adventure- and uncovering the evidence-that inspired Darwin's revolutionary work, On The Origin of Species.

Release : February 10, 2009

Website : http://channel.nationalgeographic.com/episode/darwin-s-secret-notebooks-3864/Overview

Duration : 50 minutes

Rating : 7.50