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Aeon is a registered charity committed to the spread of knowledge and a cosmopolitan worldview. Our mission is to create a sanctuary online for serious thinking.

No ads, no paywall, no clickbait – just thought-provoking ideas from the world’s leading thinkers, free to all. But we can’t do it without you.

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The deadliest tooth

5 minutes

Great for killing, and for research: the lethal fangs of saber-toothed cats

Extinct for close to 10,000 years, the saber-toothed cat, Smilodon fatalis, still inspires passionate debate among palaeontologists. Foremost: how did it use its most distinguishing feature? Playfully animated, The Deadliest Tooth spotlights the US palaeontologist Jack Tseng’s research into Smilodon fatalis, including why he believes its formidable fangs were used for attacking rather than scavenging, and the surprising amount of information palaeontologists can now deduce from just a few fossils, including how saber-toothed cubs might have lived millennia ago.

Director: Flora Lichtman, Sharon Shattuck

Website: Sweet Fern Productions

Video/Music

What happens when rock stardom doesn’t quite work out?

10 minutes

ORIGINAL
Video/Knowledge

Teaching philosophy at school isn’t just good pedagogy – it helps to safeguard society

5 minutes

Video/Demography & Migration

On the US-Mexico border, loved ones on both sides can see each other but cannot touch

12 minutes

Idea/Space Exploration

To find aliens, we must think of life as we don’t know it

Ramin Skibba

Video/Mathematics

Going from A to B isn’t always a straight line – but it can be very good fun

2 minutes

Essay/Human Evolution

Sex makes babies

As far as we can tell, no other animal knows this. Did our understanding of baby-making change the course of human history?

Holly Dunsworth & Anne Buchanan

Video/Cosmology

We are born of supernovas – our spectacular and totally ordinary origin story

4 minutes

Idea/History of Science

The most wonderful words in science: ‘We have no idea… yet!’

Daniel Whiteson

Essay/Evolution

Aliens in our midst

The ctenophore’s brain suggests that, if evolution began again, intelligence would re-emerge because nature repeats itself

Douglas Fox