How was the code of DNA cracked? How did it confirm the theory of evolution? And why did life evolve the way it did? This month, Matthew Cobb and Nick Lane unravel the tangled story of DNA, and why life began in the first place.

Nick Lane is an evolutionary biochemist in the Department of Genetics, Evolution and Environment, University College London. His work focuses on the origin of life, and the origin and evolution of eukaryotes. He is also author of prize-winning popular science books, including 'Life ascending'.

Matthew Cobb is Professor of Zoology and a senior lecturer in animal behaviour at the University of Manchester. After spending some time researching humans at the institute of psychiatry, a lot of his work now investigates insect behaviour and its evolutionary and genetic basis, particularly smell.

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