A short excerpt from Richard Fortey's book Trilobite.

Richard Fortey's Trilobite read by LC

Extract from Julian Huxley's Essays in Popular Science read by Lizzie Crouch

Julian Huxley's Essays in Popular Science read by LC

Extract of Charles Darwin's journals read by Lizzie Crouch

Extract from Mutants by Armand Leroi: http://www.amazon.com/Mutants-Genetic-Variety-Human-Body/dp/0142004820

Uploaded as part for 'Bedtime stories for scientists' posts: http://lizziecrouch.wordpress.com/