Listening in on fish grunts, and more…
Quirks and Quarks

Listening in on fish grunts, and more…

B2Upper-intermediateMay 22, 202654 min
  • Interview
  • Science

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 mysteryImmune cells that fight infection get a boost from food Radio waves let us see the unseeable: black holes, pulsars and volcanoes on VenusFrom the archives: What will the Earth look like in 2050?Quirks Question: If chicken and fish blo...

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Welcome to Quarks and Quarks.

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Napoleon famously said an army marches on its stomach, which is you have to feed your

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0:37

Hi, I'm Bob McDonald. Welcome to Quarks and Quarks. On this week's show, how your immune system fights its best fight after a good meal. Napoleon famously said an army marches on its stomach, which is you have to feed your

0:51

troops, right? And that is absolutely that we found in the immune system. And eavesdropping on rockfish to tell one type from another. It sounds like this croaking, grunting, it's kind of like a rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

1:29

80 years ago, British explorer Sir John Franklin set out on an ambitious mission to find the Northwest Passage. He left England in 1845 and ventured into the Arctic with 128 men on two ships, the HMS Erebus and HMS Terror. That expedition turned into a disaster, with both ships getting stuck in the thick Arctic ice near King William Island in what is now

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