Quirks and Quarks

Quirks and Quarks

CBC Radio's Quirks and Quarks covers the quirks of the expanding universe to the quarks within a single atom... and everything in between.

Episodes

July 10, 2026 54 mins

From tiny T. rexes to a car-sized sea monster, we revisit some of our favourite stories about predators in their prime, like:

  • Smaller tyrannosaur solves decades-long debate about the T. rex
  • Among Yellowstone’s top predators, wolves beat out cougars as the top dog
  • Bears with us. Tracking grizzlies in B.C.
  • Cleveland’s ancient car-sized sea monster had bony fangs made out of its skull
  • Wild wolves run for their lives when th...
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From camping out on 'bird poop island,' chasing down wild dogs in Madagascar, or even looking for bombs in a bog in Ottawa –– no one quite does summer like scientists. This week, we revisit some of the hijinks that Canadian researchers got up to last year as they left their labs to get their hands dirty in the field.

FEATURING:

  • Camping out on a remote island with thousands of screaming, pooping, barfing birds
  • Dodging l...
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Quirks & Quarks has been taking your burning science questions for half a century. And while we thought we might have answered every question there is to answer over the years, our listeners proved there are always more fascinating head-scratchers for us to tackle.

Like:

  • Are comets eternal?
  • In a sauna, what am I sweating out?
  • Did dinosaurs produce milk?
  • If heat rises, why is there snow on the top of mountains?
  • What does a black h...
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Some of the oceans biggest, most powerful predators, like certain sharks and tuna, are “mesothermic” or warm-bodied. Running hot allows them to rapidly convert their food to energy and heat, helping them swim faster and hunt in cold waters. But that advantage may become a disadvantage in a warming climate, meaning these fish need to find new ways of cooling off, or face a new threat to their survival.

PLUS:

  • Ancient Pe...
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Gold miners working in the Yukon regularly find ancient ground squirrel burrows throughout the permafrost, many containing fossilized feces. Researchers analyzing these well-preserved poop piles found they contain some of the oldest DNA ever recovered, dating from 30,000 to 700,000 years ago. Tucked inside were traces of a wide range of ancient animals, including woolly mammoths, grasshoppers, steppe bison, ancient horses, American...

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150 years ago, Charles Darwin noticed that birds and humans were both drawn to bright plumage and elaborate display. He called this interspecies esthetic appreciation a “shared taste for the beautiful.” Now, in a recent study, an interdisciplinary team of scientists built an online game exploring the mating calls of 16 different species and discovered, to their surprise, that humans and animals agree on which sounds are...

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The newly described Tylosaurus rex was a violent bus-sized Komodo dragon-like creature with serrated teeth. Dubbed the ‘T. rex of the sea,’ it would have occupied the top of the food chain in the marine ecosystem over 80 million years ago.

PLUS:

  • Pigeons use their livers to find their way home
  • From the archives: How Jocelyn Bell Burnell discovered pulsars 
  • Scientists discover an underground network of lakes hidden u...
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Scientists recorded audio and video of 8 different kinds of rockfish living in the wild near British Columbia, and were surprised they could tell the species apart through their various grunts, pops and knocks, even though the fish are closely related.

PLUS:

  • DNA identifies four Franklin Expedition sailors — and solves a 160-year-old mystery
  • Immune cells that fight infection get a boost from food 
  • Radio waves let us see t...
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In a study inspired by a field of dandelions, researchers wanted to know why, when you blow on a dandelion seed head, only the seeds closest to you take flight. They found that a dimple in the seed heads where the seed attaches is larger on one side than the other, and that the seeds consistently broke off from the smaller side of that dimple. Once they take flight, each dandelion seed uses its unique shape to catch a ride on the w...

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On the morning of August 10, 2025, a landslide in a fjord along the southern Alaskan coast triggered a mega tsunami. It generated the second highest wave ever recorded that reached up to 481 metres above sea level. A new study suggests that catastrophic events like this are more likely to occur as our climate warms and glaciers melt.

PLUS:

  • The hantavirus at the centre of the outbreak struck Argentina in 2018. What did we learn?
  • Ra...
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Cocaine and many other chemicals and drugs are found in many waterways, but especially around wastewater treatment plants. Scientists exposed wild juvenile Atlantic salmon to cocaine and its byproduct to see how it impacted their behaviour in the wild. As a result, the fish swam twice as far, which could put them in more danger.

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IDEAS, hosted by Nahlah Ayed is a weekday podcast that explores how ideas shape our world.

“One of your tribe is enough.” That’s what Margaret Rossiter was told when she said she wanted to study female scientists in the ‘70s. Nevertheless, Rossiter persisted. She found and documented hundreds of women whose contributions to science had been overlooked, under-credited and misappropriated. Then she made history...

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April 24, 2026 54 mins

Seabird poop plays a surprising role in bringing life to barren islands, spreading nutrients throughout the ocean, and even creating wealth for an ancient human empire.

PLUS:

  • The precursors of written language go back a lot earlier than we thought
  • Dolphins exposed to the Deepwater Horizon oil spill also more likely to be hit by boats
  • From the archives: Canadian astronomer spots a supernova visible to the naked eye
  • Quirks Question: H...
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We tend to think of animals like snakes, rats and even cockroaches as pests, but in her new book, biologist Marlene Zuk says there's a lot we can learn from these less than desirable creatures, if we just give them a chance.

PLUS:

  • A case of mistaken identity: The truth about the world's 'oldest' octopus fossil
  • From the archives: Carl Sagan on the worlds beyond our solar system
  • The evolutionary cost of our relationship with fire
  • We'r...
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There's been a growing movement to develop new technologies to replace at least some of the animals used in scientific research. Researchers across Canada are working to create these tools, to usher in a new animal-free era for medical science.

PLUS:

  • Harbor seals can 'talk' thanks to their parrot-like brains
  • 'Flaming hot' water ice may explain Neptune and Uranus' strange magnetism
  • A thigh bone that could represent the oldest eviden...
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On their mission around the moon, Jeremy Hansen and his crewmates will become the only four people on Earth to ever lay eyes on the entire far side of the moon. Since joining the space program, the Artemis astronauts have been undergoing intensive geological training to help train their eyes to look for lunar features that satellites can't pick up. 

PLUS:

  • How Neanderthals skillfully hunted and butchered a giant elephant
  • Filmi...
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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 help
  • Male-on-male cricket 'twerking' and 'booty bumping' is not a case of mistaken identity
  • Narrowing down potential alien signals from 12 billion to 100, thanks to SETI 
  • Researchers fi...
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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 form
  • Nearly indestructible teeny tiny tardigrades struggle to survive in Martian dirt
  • Tiny tags on monarch butterflies allow scientists to track their ex...
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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 success
  • Low gravity environments can lead to stronger blood clots in astronauts
  • From fire to galaxy formation, a celebration of friction as a fundamental force
  • ...
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You may have seen Black Hole, the image, but have you heard of the upcoming Black Hole, The Movie? This week, astronomers launched a new campaign to capture video footage of the supermassive black hole pulsing at the heart of the M87 galaxy.

PLUS:

  • Sunlight and fungi inspiration can help recycle plastic waste into vinegar
  • Ancient kangaroos were hopping giants
  • How monogamy helps termite colonies number in the millions
  • Our infant unive...
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