Jim Al-Khalili talks kangaroos and the death of the Y chromosome with Prof Jenny Graves.
Jim Al-Khalili talks to neuroscientist Sophie Scott about the science of laughter.
Jim Al-Khalili discusses sci-fi and popularising maths with Prof Ian Stewart.
Jim Al-Khalili discusses digging up dinosaurs in remote places with Prof Mike Benton.
Jim Al-Khalili discusses medical imaging and mountain climbing with Prof Mark Lythgoe.
Joanna Haigh, professor of physics at Imperial College, talks climate with Jim Al-Khalili.
Jim Al-Khalili talks to zoologist Russell Foster about circadian rhythms and jet lag.
Jim Al-Khalili talks to Professor Elizabeth Stokoe about studying real-life conversations.
Jim Al-Khalili talks risk and uncertainty with Prof David Spiegelhalter.
Ewan Birney talks to Jim Al-Khalili about deciphering the human genome and junk DNA.