1. Professor Jenny Clack

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. 11 April 2012. 60 min

For palaeontologist Professor Jenny Clack, who solved one of the greatest mysteries in the history of life on Earth, success was far from inevitable. She recounts how she had to overcome a series of setbacks before she found and described the fossil Acanthostega, a 365 million-year-old creature that offered dramatic new evidence of how fish made the transition onto land.

2. Professor Andre Geim

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. 18 April 2012. 60 min

Andre Geim reveals how his playful approach to research helped him uncover the properties of graphene, the world's thinnest material, and won him a Nobel Prize.

3. Professor Richard Dawkins

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. 25 April 2012. 60 min

Professor Richard Dawkins reveals how he came to write his explosive first book The Selfish Gene, a work that was to divide the scientific community and make him the most influential evolutionary biologist of his generation. He also explores how this set him on the path to becoming an outspoken spokesman for atheism.