A solution to the puzzle which came to be known as ‘Darwin’s Dilemma’ has been uncovered by scientists at the University of Oxford in a paper published in the Journal of the Geological Society. ‘To the question of why we do not find rich fossiliferous deposits belonging to these…periods prior to the Cambrian system, I can give no satisfactory answer’, Charles Darwin wrote in On the Origin of Species by Means of Natural Selection, or The Preservation of Favoured Races in the Struggle for Life in 1859, summarizing what came to be known as ‘Darwin’s Dilemma’ – the lack of...