The Life Scientific Folgen

Professor David Nutt was sacked in 2009 as the government's chief drugs adviser after criticising its decision to reclassify cannabis. He is a psychiatrist and one of the country's leading experts on the effects of drugs on the brain. His latest research is investigating how psilocybin, the active ingredient in magic mushrooms, could be used to treat depression. He talks to Jim about his passion for science and his disputes with government over drug policy.

Andrea Sella is a science showman, whose theatrical demonstrations of chemistry are filling theatres up and down the country. But as Professor of Materials and Inorganic Chemistry, Jim Al-Khalili asks him if he would rather be known for his research into rare metals than for his whizz bang displays.

Richard Dawkins' first book on evolutionary biology "The Selfish Gene" was published to much acclaim and some controversy in 1976. In this interview with Jim Al-Khalili, Professor Dawkins discusses his enthusiasm for the science that inspired the book and how he popularised the idea of the immortal gene. Using the source material from scientists such as Bill Hamilton, Robert Trivers and John Maynard Smith, he presented a gene's eye view of the world. He's written many other books on evolutionary biology, such as "The Extended Phenotype" "Unweaving the Rainbow" and "The Ancestors Tale". In 2006 he published a polemic which he describes as "a gentlemanly attack on religion", "The God Delusion". Jim asks what he hoped to achieve by writing the book and finds out why he would rather be known for his science than his atheism.