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James Lovelock

James Lovelock on elocution lessons, defrosting hamsters and Gaia.

• 28 mins

Frances Ashcroft

Frances Ashcroft on a lifetime spent studying the link between blood sugar and insulin.

• 28 mins

Lloyd Peck

Jim Al-Khalili meets Antarctic scientist Lloyd Peck and discovers giant sea spiders.

• 28 mins

Barbara Sahakian

Jim meets neuroscientist Barbara Sahakian to discuss her work with Alzheimer's disease.

• 28 mins

Robert May

Jim al-Khalili talks to the former chief scientific advisor Robert May about public trust.

• 28 mins

John Pickett

Jim Al-Khalili meets John Pickett, whose recent work on GM wheat caused a public debate.

• 28 mins

Steve Jones

Geneticist Steve Jones lives life in the slow lane, studying snails.

• 28 mins

Pat Wolseley

Jim Al-Khalili talks to Pat Wolseley talks about her obsession with lichen.

• 28 mins

Martin Siegert

Jim Al-Khalili goes under the Antarctic ice with glaciologist Martin Siegert.

• 28 mins

Dame Ann Dowling

Jim Al-Khalili discusses silent aircraft with Cambridge engineer, Dame Ann Dowling.

• 28 mins

Richard Dawkins

Jim Al-Khalili meets evolutionary biologist and author Prof Richard Dawkins.

• 28 mins

Andrea Sella

Jim Al-Khalili discovers why Andrea Sella's chemistry demonstrations are filling theatres.

• 28 mins

David Nutt

Jim Al-Khalili interviews Prof David Nutt about research into drugs and the brain.

• 28 mins

Sunetra Gupta

Jim Al-Khalili meets Prof Sunetra Gupta, a scientist and novelist.

• 28 mins

Sir Mark Walport

Jim Al-Khalili talks to the next government chief scientific advisor, Sir Mark Walport.

• 28 mins

Hugh Montgomery

Jim Al-Khalili interviews Professor Hugh Montgomery about the gene for fitness.

• 28 mins

Monica Grady

Jim Al-Khalili and Prof Monica Grady weigh up the evidence for life on Mars.

• 28 mins

Jared Diamond

Jared Diamond on gall bladders, global history and the birds of Papua New Guinea.

• 28 mins

John Gurdon

2012 Nobel Prize winner John Gurdon on cloning a frog decades before Dolly the Sheep.

• 28 mins

Amoret Whitaker

Amoret Whitaker talks about insects and their role in helping solve crimes.

• 28 mins

Prof Robert Mair

Robert Mair talks about tunnelling under Big Ben, Crossrail and engineering for the future

• 28 mins

Annette Karmiloff-Smith

Should babies under two watch TV? Jim talks to psychologist Annette Karmiloff-Smith.

• 28 mins

Noel Sharkey

Jim Al-Khalili talks to roboticist and psychologist, Noel Sharkey.

• 28 mins

Valerie Beral

Jim Al-Khalili talks to breast cancer pioneer Valerie Beral.

• 28 mins

Alan Watson

Jim Al-Khalili talks to Alan Watson about his quest to discover the source of cosmic rays.

• 28 mins

Sue Ion

Jim Al-Khalili talks to Sue Ion about working in the nuclear industry post-Chernobyl.

• 28 mins

Nancy Rothwell

Jim Al-Khalili in conversation with the neuroscientist Prof Dame Nancy Rothwell.

• 28 mins

Sanjeev Gupta

What links the English Channel to valleys on Mars? Jim talks to geologist Sanjeev Gupta.

• 28 mins

Lord John Krebs

Lord John Krebs talks to Jim al-Khalili about birds, foot and mouth disease and badgers.

• 28 mins

Linda Partridge

The science of longevity - Jim Al-Khalili chats to geneticist Prof Dame Linda Partridge.

• 28 mins