Nick Evershed interviews Dr. Lindy Lumsden about Pipistrelle bats near extinction on Christmas Island, Ian Woolf gives his view of the New Scientist interview assertion that Chronic Fatigue Syndrome is "almost all in the mind", Marc West examines correlation and causation, News by Jacqui Hayes - Older parents statistically have less intelligent children - Stem cell policy change - DNA confirms Tsar's children died with the Tsar Presented by Marc West, Produced by Ian Woolf