Nature Podcast21 Helmi 2024

Why are we nice? Altruism's origins are put to the test

In this episode:

00:45 Why are humans so helpful?

Humans are notable for their cooperation and display far more altruistic behaviour than other animals, but exactly why this behaviour evolved has been a puzzle. But in a new paper, the two leading theories have been put the test with a model and a real-life experiment. They find that actually neither theory on its own leads to cooperation but a combination is required for humans to help one another.

Research article: Efferson et al.

News and Views: Why reciprocity is common in humans but rare in other animals

10:55 Research Highlights

The discovery of an ancient stone wall hidden underwater, and the fun that apes have teasing one another.

Research Highlight: Great ‘Stone Age’ wall discovered in Baltic Sea

Research Highlight: What a tease! Great apes pull hair and poke each other for fun

13:14 The DVD makes a comeback

Optical discs, like CDs and DVDs, are an attractive option for long-term data storage, but these discs are limited by their small capacity. Now though, a team has overcome a limitation of conventional disc writing to produce optical discs capable of storing petabits of data, significantly more than the largest available hard disk. The researchers behind the work think their new discs could one day replace the energy-hungry hard disks used in giant data centres, making long-term storage more sustainable.

Research Article: Zhao et al.

20:10 Briefing Chat

The famous fossil that turned out to be a fraud, and why researchers are making hybrid ‘meat-rice’.

Ars Technica: It’s a fake: Mysterious 280 million-year-old fossil is mostly just black paint

Nature News: Introducing meat–rice: grain with added muscles beefs up protein

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Briefing Chat: The Bunsen burner myth that turns out to be just hot air

Nature staff discuss an AI tool that can assess the impact of nine billion mutations — plus, how the Bunsen burner’s reputation for sterilization may be based on tradition alone.00:21 Deepmind’s new t...

11 Syys 15min

Phone tutoring boosts math scores when schools are forced to close

In this episode:00:46 How telephone teaching could boost education during school shutdownsNature: Pick up the phone! Phone calls with tutors keep kids learning when schools shut down11:42 Research Hig...

9 Syys 21min

Briefing Chat: How 1,000 pairs of buried underpants helped measure soil health

In this episode:00:21 Our picks of this year’s Ig Nobel prizesNature: Buried underpants and a new definition of kissing win 2026 Ig Nobel prizes07:47 Massive xenon experiment detects tantalizing hint ...

4 Syys 12min

Audio long read: Could mending damaged DNA prolong life?

Scientists are amassing evidence that unrepaired or poorly repaired DNA damage underlies many of the hallmarks of ageing. This has led to research into whether boosting DNA repair can keep people heal...

2 Syys 18min

Briefing Chat: How Dolly Parton left her mark on science

In this episode:00:18 Researchers celebrate Dolly Parton's contributions to scienceNature: Dolly Parton dies aged 80 — researchers celebrate her contributions to science08:40 Phase III trial of melano...

28 Elo 14min

Highest-ever ocean temperatures recorded as El Niño intensifies

Why extreme temperatures are expected to weaken ocean carbon sinks — plus, how mitochondrial injections could treat vision loss.00:46 The world’s oceans reach a record temperatureNature: Ocean tempera...

26 Elo 19min

Briefing Chat: New narcolepsy drug could unlock host of novel brain therapies

Nature staff discuss how an FDA-approved drug for narcolepsy could have promise beyond the condition, and the longest-lived human brain organoids yet.00:28 The promise of a new narcolepsy drugNature: ...

21 Elo 12min

A black hole's spin could finally be measured by a high-speed star

Star orbiting close to Sagittarius A* could reveal its spin — plus, how exoskeletons might change the way humans move.00:46 The star that could reveal a black hole’s spinResearch article: Dayem et al....

19 Elo 29min