CBC Discover & Learn

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Kanal • 21 serier

Samfund og kultur

Samfund og kultur

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Erhverv

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Nyheder

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Samfund og kultur

Samfund og kultur

To gange om ugen
Nyheder

Nyheder

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Nyheder

Nyheder

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3 DAGE SIDEN

Dogs have been by our side for 16,000 years, and more...

New research confirms that dogs were the first animal to form a domestic relationship with humans, dating back to the end of the last Ice Age almost 16,000 years ago. PLUS: Constructing shelters out of Martian soil may be possible with bacterial helpMale-on-male cricket 'twerking' and 'booty bumping' is not a case of mistaken identityNarrowing down potential alien signals from 12 billion to 100, thanks to SETI Researchers find a brain switch in mice to turn a deadbeat dad into a doting one

3 dage siden

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54 min.
23. MAR.

When a poem changes your life

Poetry can find you when you need it most. It can be life-altering to read that poem just at the right moment. It was for six IDEAS producers who join Nahlah Ayed in studio to share poems they return to, year after year. This special episode is to mark UNESCO's World Poetry Day, March 21st.

23. mar.

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54 min.
3 DAGE SIDEN

Massey Lecture Part 5 | A human rights agenda for Canada

In more than 40 years on the front lines of international human rights Alex Neve has heard Canada described as ‘the land of human rights’ — and seen the profound ways Canada has failed to uphold universal human rights, both at home and abroad. In his final Massey Lecture, he lays out his vision for a way forward.

3 dage siden

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1 t. 3 min.
20. MAR.

A stinky planet full of magma, and more...

An unusual hellscape of a planet found 34 light years from Earth has a deep ocean of molten magma surrounded by noxious, hot, rotten egg-type fumes. It just may be the most uninhabitable alien landscape we've ever come across. PLUS: Neanderthal DNA can help explain how human faces formNearly indestructible teeny tiny tardigrades struggle to survive in Martian dirtTiny tags on monarch butterflies allow scientists to track their exact migration routeA weird fish has a big hole in its head. Scientists finally have an idea why.

20. mar.

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54 min.
18. FEB.

Why AI needs to be nicer to us and develop 'maternal instincts'

If AI continues to develop without appropriate guardrails, a worst-case scenario could lead to human extinction, warns the 'godfather of artificial intelligence ' Geoffrey Hinton. But the Nobel Prize winner has a solution: AI must foster 'maternal' instincts, empathy and kindness. Hinton tells host Nahlah Ayed that it's fairly inevitable AI will become smarter than humans, but if we could make it care more for us than it did about itself, good things could happen.

18. feb.

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54 min.
19 TIMER SIDEN

Why everything you thought about earthworms is wrong

Earthworms are supposed to be a sign of healthy soil. But they're actually an invasive species that can even damage forests. So have we been sold a lie about worms and soil? Not exactly. The relationship between the two depends on the context. And the way we garden — or farm — can make all the difference. IDEAS producer Annie Bender unearths the complicated truth about the not-so lowly earthworm. Guests in this episode: Joshua Steckley is a political ecologist, postdoctoral fellow at Carleton University and the author of The Nightcrawlers: A Story of Worms, Cows, and Cash in the Underground Bait Industry. Peter Groffman is a professor at the City University of New York Advanced Science Research Center and Brooklyn College, with research interests in ecosystem, soil, landscape and microbial ecology, with a focus on carbon and nitrogen dynamics. Mike McTavish is a conservation scientist at a rare Charitable Research Reserve in Cambridge, Ontario. Janet Browne is a historian of science and Darwin biographer, author of a two-volume set called Darwin: A Biography.

19 timer siden

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12 min.
6 DAGE SIDEN

The common ground of fact and fiction can be powerful

Fact and fiction may seem poles apart but writers Esi Edugyan and Tiya Miles find the two intertwine perfectly in their award-winning storytelling. Both authors try to imagine past lives in their work, in part so that we may reimagine our own. They may operate in different realms but what they share is the telling of profoundly important stories that would otherwise go untold. It's been a longtime goal for IDEAS to bring these two accomplished authors together for a discussion — and it was worth the wait. This podcast was recorded in front of an audience in January 2026 at a Toronto Public Library event.

6 dage siden

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54 min.
5 DAGE SIDEN

Why we should 'fight like hell' against Big AI

"Our democracy is what’s at stake," says Karen Hao, an engineer who used to work in Silicon Valley. Now she’s an outspoken critic of its AI giants. The investigative journalist argues AI companies run their businesses like empires and it has to stop. In her 2025 bestseller, Empire of AI, Hao digs into the global impact of Big AI and explores how we need to rethink AI to build a better future. This podcast includes a lecture by Karen Hao and a discussion with host Nahlah Ayed.

5 dage siden

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54 min.
18. MAR.

'There's no such thing as clean energy'

If journalist Vince Beiser had his way the term 'clean energy' wouldn't exist — it's a misnomer. He argues green energy comes with cost. Sure, solar power or wind power are both better than power from fossil fuels but Beiser points out they are still harmful to the planet and people. "There's no magic solution." Beiser tells IDEAS we need to shift to renewable energy but we also need to recognize it's not a "magic solution" — there is a downside with consequences. Vince Beiser's book is called Power Metal: The Race for the Resources that Will Shape the Future.

18. mar.

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54 min.
13. MAR.

Bonobo females bully the boys, and more…

We used to think that of our primate relatives, chimps were the more aggressive ape and bonobos were more peaceful. A recent study found that bonobos are just as antagonistic as chimps, but it's the females targeting males. PLUS: Mission to deflect an asteroid was a smashing successLow gravity environments can lead to stronger blood clots in astronautsFrom fire to galaxy formation, a celebration of friction as a fundamental forceWinter spiders survive subzero temperatures with a potent antifreeze

13. mar.

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54 min.

Expand your knowledge and satisfy your curiosity with podcasts exploring the topics affecting us all — from science, climate, and tech news to history and human nature. Award-winning series that enlighten, entertain and inform.

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