Steve Jones is a professor of genetics and head of the biology department at University College London. His studies are conducted in the Galton laboratory. He is also a television presenter and a prize-winning author on the subject of biology, especially evolution. He is one of the best known contemporary popular writers on evolution. His popular writing shows a wry, sometimes rather dark, sense of humour. In 1996 his writing won him the Royal Society Michael Faraday prize "for his numerous, wide ranging contributions to the public understanding of science in areas such as human evolution and variation, race, sex, inherited disease and genetic manipulation through his many broadcasts on radio and television, his lectures, popular science books, and his regular science column in The Daily Telegraph and contributions to other newspaper media".

Steve's books include In The Blood: God, Genes and Destiny, Y:The Descent of Man, Almost Like a Whale: 'The Origin of Species' Updated, The Single Helix: A Turn Around the World of Science and Coral: A Pessimist in Paradise. His most recent book is Darwin's Island: The Galapagos in the Garden of England.

This show was the 100th edition of Little Atoms.

First broadcast on 20th February 2009.