logo
episode-header-image
Jun 13
26m 28s

Was there an idyllic time before carnivo...

Bbc World Service
About this episode

Was there ever a time when life on earth was peaceful? Free of violence? No predators, no prey, just... vibes? Or has nature always been 'Red in Tooth and Claw'?

Have we always been eating each other?

Our listener Scott sent us on a quest to discover the origins of predators and prey, and to find out what all this ‘eat or be eaten’ stuff is really about.

Taking us back to the very dawn of life on earth, Professor Susannah Porter from the University of Santa Barbara lets Alex peer into an extraordinary world of microscopic warfare. It’s a dog-eat-dog (or, microbe-dissolve-microbe) world, with single celled organisms doing battle with each other. For billions of years, this was life on earth! Tiny, violent, and completely fascinating.

But what about bigger creatures? More complex ones - animals? Speeding forward several billion years, Alex arrives in the Ediacaran Period – a time of unusual tranquility, where strange, plant-like animals lived in relative peace. At the Natural History Museum in Oxford, UK, palaeontologist Dr Frankie Dunn shows him around.

So where did real predators come from, then? Alex is joined by Dr Imran Rahman as he ushers in one of the most extraordinary periods in Earth’s history – the magnificently named Cambrian Explosion! Here we find real predators, with teeth, claws, and impressive hunting appendages. Through the fossil record, we can see an arms race developing – as predators get more sophisticated, so does their prey. It’s ON.

Finally, Alex wonders if our own evolution, shaped as it has been by this predator-prey arms race, might have been very different without the threat of being chomped. Professor Lynne Isbell from the University of California, Davis takes Alex on a trip into our primate past, and tackles one of our most fearsome predators: snakes.

Presenter: Alex Lathbridge Producer: Emily Knight Series Producer: Ben Motley

Up next
Jul 4
Can we harness solar energy from other stars?
Listener Dickson Mukisa from Uganda has been gazing up at the stars. But he’s not making wishes. He wants to know whether we can harness their energy, in the same way we do with our OWN star – the sun. After all, they may seem small and twinkly to us, but each one is a gigantic f ... Show More
26m 28s
Jun 27
Why are twins special?
No one really cares that CrowdScience listener Sam has a younger brother, but they do care about his sister. In fact, they’re fascinated by her. That’s because Sam and his sister are fraternal twins. He’s been wondering all his life why he’s treated differently. Could it be cultu ... Show More
26m 28s
Jun 20
How can we persuade more people to cycle?
Cycling is good for our health, good for the planet, and it can be an efficient way of moving around busy cities. But despite all the rational arguments for it, in most cities the number of people who get on their bikes is low.CrowdScience listener Hans wants to know whether it’s ... Show More
26m 28s
Recommended Episodes
Jun 2019
For Elizabeth Diller, New York City Is Beginning to Feel Like One Big Punch List
When Elizabeth Diller graduated from Cooper Union with a degree in architecture in 1979, she had no intention of necessarily becoming an architect. In fact, the Polish-born, New York–raised Diller chose architectural studies simply to explore her interests in art and physical spa ... Show More
1h 19m
Dec 2019
The Architecture City: BLOX in Copenhagen
The design of radical buildings in historic cities often stirs up debate. Are we afraid of architectural change? Do we eventually come to love these buildings? OMA architect and partner Ellen van Loon chats with DAC’s Director Kent Martinussen and host Frederikke Aagaard about th ... Show More
23m 37s
Oct 2024
What's it like to live in a high-rise?
Mette Mechlenborg, senior researcher at Aalborg University, is the co-author of a new study on life in Danish high-rise residential buildings—the first of its kind in over fifty years. This long gap is partly due to Denmark's historical reluctance to embrace high-rise living, esp ... Show More
33m 16s
Aug 2023
Christian Parreno, "Boredom, Architecture, and Spatial Experience" (Bloomsbury, 2021)
Boredom is a ubiquitous feature of modern life. Endured by everyone, it is both cause and effect of modernity, and of situations, spaces and surroundings. As such, this book argues, boredom shares an intimate relationship with architecture-one that has been seldom explored in arc ... Show More
35m 6s
Oct 2024
Johanna Hedva, "How to Tell When We Will Die: On Pain, Disability, and Doom" (Zando-Hillman Grad Books, 2024)
The long-awaited essay collection from one of the most influential voices in disability activism that detonates a bomb in our collective understanding of care and illness, showing us that sickness is a fact of life.In the wake of the 2014 Ferguson riots, and sick with a chronic c ... Show More
59m 22s
Oct 2024
Exploring the Science of Spookiness at the Recreational Fear Lab
Why do so many of us love a good scare? Whether it’s horror movies, haunted houses or creepy podcasts, there’s something thrilling about feeling spooked—especially around Halloween. In this episode, host Rachel Feltman dives into our fascination with fear and morbid curiosity wit ... Show More
17m 32s
Sep 2012
Kristin Andrews, “Do Apes Read Minds?: Toward a New Folk Psychology” (MIT Press, 2012)
The ability to figure out the mental lives of others – what they want, what they believe, what they know — is basic to our relationships. Sherlock Holmes exemplified this ability by accurately simulating the thought processes of suspects in order to solve mysterious crimes. But f ... Show More
1h 6m
Apr 2023
The Future of Germs: A Discussion with Jonathan Kennedy
Have germs or humans done the most to shape the world’s history? Did Homo Sapiens get the better of the Neanderthals because of superior brainpower or because of better resistance to some infectious disease? And are germs part of the story behind the fall of Rome and rise of Isla ... Show More
1h 2m
Oct 2024
Why No One Wants This London Skyscraper - #115
This week, we're digging into The B1M's recent video "Why No One Wants This London Skyscraper". We're keeping it local, and looking further into the battle to build Western Europe's tallest new skyscraper - 'One Undershaft' in the City of London. This episode is sponsored by Trim ... Show More
45m 36s
Jun 21
John Barr, "1960s University Buildings: The Golden Age of British Modern Architecture" (Lund Humphries, 2025)
The 1960s continue to hold an almost mythical place in Western culture, particularly in Britain, where change was widespread and infiltrated many aspects of life. This included architecture, whose role in a modern democracy and the form it should take were hotly debated. 1960s Un ... Show More
1h 1m