Brian and Robin are joined by palaeontologist Dr Susie Maidment, evolutionary biologist Dr Tori Herridge and comedian Dave Gorman to pitch giant creatures against tiny creatures in their bid to avoid extinction. They explore the scale of life and ask why some organisms are large and some small and what the optimum size for successful survival is. From the prokaryotic cell to the grandest dinosaur, how does the modern synthesis explain the huge variation in scale, form and function? What are the advantages and disadvantages to being huge like the dinosaurs, or was it their size that really did them in, in the end?

New episodes released Wednesdays. If you're in the UK, listen to the newest episodes of The Infinite Monkey Cage first on BBC Sounds: bbc.in/3K3JzyF

Executive Producer: Alexandra Feachem

Brian and Robin (the real ones) are joined by mathematician Prof Hannah Fry, compute scientist Dr Kate Devlin and comedian Rufus Hound to discuss the pros and cons of AI. Just how intelligent is the most intelligent AI? Will our phones soon be smarter than us – will we fail a Turing test while our phone passes it? Will we have AI therapists, doctors, lawyers, carers or even politicians? How will the increasing ubiquity of AI systems change our society and our relationships with each other? Could radio presenters of hit science/comedy shows soon be replaced with wittier, smarter AI versions that know more about particle physics... surely not!

New episodes released Wednesdays. If you're in the UK, listen to the newest episodes of The Infinite Monkey Cage first on BBC Sounds: bbc.in/3K3JzyF

Executive Producer: Alexandra Feachem.

Are some people just lucky? Is there any scientific formula behind coincidences? Is randomness the norm? Brian and Robin team up with comedian Sophie Duker, mathematician Marcus Du Sautoy and statistician David Spiegelhalter to uncover the reality and the maths behind seemingly incredible coincidences. How many people do you need in a room to find two with the same birthday? What is the weirdest coincidence that the panel have ever encountered? Is there a mathematical formula to being lucky? How good are we at judging how likely something is to happen? The answer is not very, as Brian and Robin unluckily discover.

New episodes released Wednesdays. If you're in the UK, listen to the newest episodes of The Infinite Monkey Cage first on BBC Sounds: bbc.in/3K3JzyF

Executive Producer: Alexandra Feachem.

There’s no shortage of surprising science in The Infinite Monkey Cage and this episode is dedicated to you, the audience, as we hear some of your favourite clips from the past 14 years of the show. Palaeontologist Susie Maidment explains why licking rocks is the best way to determine their age, but you were just as interested in whether Robin is older than Brian, who also admits Jon Culshaw’s impression of him is surprisingly accurate. Entomologist Erica McAlister explains what to do if a fly lands in your wine, but be warned, it might put you off drinking! And actor Brendan Hunt gets excited by the prospect of chatty trees.

Episodes featured:

New episodes will be released on Wednesdays, but if you’re in the UK, listen to new episodes, a week early, first on BBC Sounds: bbc.in/3K3Jzy

Producer: Marijke Peters

If Aliens really are amongst us, the most likely candidates may not be little green men, but living in plain sight, just below our ocean waves, in the form of the mysterious and awe-inspiringly clever Octopus. Scientists are only just discovering the amazing intelligence of these elegant and highly unusual creatures that seem to have evolved in a completely different way to nearly any other creature on the planet. Brian and Robin are joined by marine biologist Dr Tim Lamont, Neuroscientist Dr Amy Courtney and comedian Russell Kane to uncover just how clever these mysterious creatures are, how they've evolved intelligence in an entirely unique way and whether 8 brains, as well as 8 legs are really better than 1. The panel also discover the alarming truth about the unique sex lives of the octopus - lets just say it doesn't end well for at least one of the participants.

New episodes released Wednesdays. If you're in the UK, listen to the newest episodes of The Infinite Monkey Cage first on BBC Sounds: bbc.in/3K3JzyF

Executive Producer: Alexandra Feachem

Endless inflation seems to be everywhere at the moment, including on this episode examining the nature of infinity. Brian and Robin dive through the back catalogue to discover there might be no limit to the number of parallel universes that exist. This leads to an argument between astronomer royal Lord Rees and comedy producer John Lloyd, who says the whole suggestion is total speculation. Even cosmologist Carlos Frenk can’t get his head round the idea, as he contemplates the suggestion that new big bangs may be happening all the time.

Episodes featured:

New episodes will be released on Wednesdays, but if you’re in the UK, listen to new episodes, a week early, first on BBC Sounds: bbc.in/3K3Jzy

Producer: Marijke Peters

Brian Cox and Robin Ince consider the quirks that make human beings unique and check in with experts from The Infinite Monkey Cage back catalogue. Prof Alice Roberts explains that our ancestors interbred with Neanderthals to make us who we are today. We’re also excellent at communicating with other species, as comedian Bill Bailey learns when he gets a lesson in chimp speak from the legendary primatologist Dr Jane Goodall. Then there are the bits of us that are pretty different, like our large brains and Conan O’Brien says his has been wired for comedy. Everyone agrees natural selection hasn’t always equipped us with the best tools for the job and David Baddiel argues the eye is a perfect example of a human design flaw.

Episodes featured:

New episodes will be released on Wednesdays, but if you’re in the UK, listen to new episodes, a week early, first on BBC Sounds: bbc.in/3K3Jzy

Producer: Marijke Peters

If there’s any doubt that the deep sea is as exciting to explore as the moon or Mars, this episode puts the question to rest, as Robin and Brian wade through the back catalogue to learn all about the ocean. Professor Lloyd Peck from the British Antarctic Survey tells them about the weird and wonderful creatures he’s encountered at sea, from rat-tailed fish to bacteria that feed off sulphides that could kill them, but Dave Gorman is still sceptical that it’s an environment worth investigating. And he's not the only one – fellow comedian Tim Minchin might live near Australia’s best beaches but says he’s terrified by the idea of getting in a submarine, let alone sharing such a small space with Brian Cox!

Episodes featured:

New episodes will be released on Wednesdays, but if you’re in the UK, listen to new episodes, a week early, first on BBC Sounds: bbc.in/3K3Jzy

Producer: Marijke Peters

While most of us believe the universe began with a big bang, Brian and Robin hear some of the alternative theories, including an Egyptian myth that it actually started with a giant ejaculation, as they question the origins of life as we know it. With so much still to be discovered about the cosmos, Rufus Hound says we need more bangs and flashes in chemistry classes, arguing lessons aren’t dangerous enough anymore. So could comedians play a role in advancing the science? Matt Lucas says he’s happy to jump into a black hole when he learns there’s high speed internet and Eric Idle gets poetic about the tiniest of particles in a special song about the Higgs Boson.

Episodes featured:

New episodes will be released on Wednesdays, but if you’re in the UK, listen to new episodes, a week early, first on BBC Sounds: bbc.in/3K3JzyF

Producer: Marijke Peters

Robin Ince and Brian Cox are still struggling to decide when a strawberry dies as they trawl through the archive to ponder where we should draw the line between life and death. Katy Brand kicks the debate off with her thoughts on whether strawberries have souls, which leads her to wonder whether it might be possible for people to be resurrected. While it’s theoretically possible to bring someone back to life, it’s not looking likely any time soon. Instead, Rufus Hound talks us through how he’d commit the perfect murder, right down to the use of a woodchipper to destroy any DNA evidence. Little does he realise that this fingerprint of life gets everywhere, including down comedian Susan Calman’s pants.

Episodes featured:

New episodes will be released on Wednesdays, but if you’re in the UK, listen to new episodes, a week early, first on BBC Sounds: bbc.in/3K3JzyF

Producer: Marijke Peters