CrowdScience - Why do animals swallow rocks?

What would you discover inside the stomach of a sea lion? CrowdScience listener Robyn found out first-hand when she volunteered at her local museum in Adelaide, Australia. The team dissecting the specimen removed around 30 rocks from the animal’s stomach, and Robyn wants the Crowdscience team to find out how and why they got there.

Presenter Anand Jagatia uncovers a whole world of rock-munching creatures, from ostriches to ichthyosaurs. In search of answers we investigate Canadian sea lion research, and rummage through the vaults at the Natural History Museum in Bamberg, Germany.

Presented by Anand Jagatia Produced by Emily Bird

Image: Australian Sea Lion (Neophoca cinerea), Hopkins Island, South Australia Credit: Stephen Frink via Getty Images

1A - The News Roundup For April 11, 2025

This week the Supreme Court told the Trump administration Thursday that it must "facilitate" the release and retrieval of a Maryland man who was wrongly deported to a prison in El Salvador.

After announcing tariffs on almost every country in the world last week, President Donald Trump announced this week that he was pausing reciprocal tariffs for 90 days. Except for those on China.

Health Secretary Robert F. Kennedy Jr. traveled to Texas after a second death linked to a measles outbreak in the state was reported.

Meanwhile, Ukraine says Chinese soldiers are now waging war alongside Russian soldiers. China denies the accusation.

And on Tuesday, Japan signaled that it would be interested in joining NATO's support of Ukraine as it continues to fight off the Russian invasion.

Our all-star panels help guide us through the most important headlines this week.

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State of the World from NPR - Allegations of a Land Grab on Nigeria’s Coast

Many communities have thrived for years on the peninsula and islands in the lagoon around Nigeria's crowded commercial capital Lagos. But the last decade has seen a violent shift, as thousands of people have been evicted by the Nigerian Navy and the government in an apparent effort to make way for luxury developments. We go to the communities and meet the people affected.

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The Bulwark Podcast - S2 Ep1019: David Frum: It’s Too Late to Stop the Pain

Trump has effectively imposed a trade embargo on China, which means that after the inventory runs out, American retail will soon dry up. And since Europeans are already bypassing U.S. military contractors to beef up their defense spending —El Salvador is our only ally now— Trump is likely to do something desperate, like firing the Fed chair or seizing Greenland. American presidents decades from now will still be cleaning up what Trump did to this country in 2025. David Frum breaks down the insanity and stupidity of the vision behind the tariffs regime as well as the deep feelings of betrayal in Canada. If globalism means peace, prosperity, and commerce, then let's be globalists.

 David Frum joins guest host Jonathan V. Last for the weekend pod.
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Stuff They Don't Want You To Know - Listener Mail: Science and Astrology, Secrets of the Pyramids, and “Chicken Tax”

Astrolojon prompts an exploration of a possible scientific basis to astrology. Flea asks for more information about the viral claims concerning purported pillars deep beneath the Pyramids of Giza. AngryBizkitz inspires an investigation into the weird, conspiratorial world of tariff loopholes and the infamous "Chicken Tax." All this and more in this week's listener mail segment.

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Philosophers In Space - Listener Qs 40

No joke, we hit listener Qs 40 the week I also turn 40. Weird stuff. Anyway, thanks for keeping us alive over here, even if it's just to extend the torture a bit longer.

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Focus on Africa - Rwanda asks UK to extradite genocide suspects

More than 30 years after the genocide in Rwanda, the country has asked Britain to extradite six suspects on UK soil. Can the suspects face trial in UK for the alleged crimes?

As Gabon seeks to transition to a democratic system, could the coup’s mastermind General Brice Oligui Nguema win a presidential election?

And why migratory birds that flock to Uganda maybe endangered.

Presenter : Audrey Brown Producers : Charles Gitonga and Frenny Jowi in Nairobi with Victor Sylver and Tom Kavanagh in London Technical Producer: Pat Sissons Senior Producer: Paul Bakibinga Editors: Andre Lombard and Alice Muthengi