Science

Think of a seed buried in a pot. Like this one:

No, said airline security, you can't take this bottle onboard. It exceeds the 100 milliliter limit; it's forbidden.

But wait, said professor Martin Birchall of Bristol University. This is a medical container. Inside is a trachea, a carefully constructed human windpipe, seeded with 60 million stem cells from a very sick woman in Barcelona. We have just 16 hours to get it into her body. We pre-arranged this.

We have no record of your request, said the airline.

Transcript

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SCOTT SIMON, HOST:

Before Pixar or Walt Disney, was there Paleolithic Man?

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SIMON: The Chauvet prehistoric cave paintings in France have always glimmered with a mystery: why do the depictions of ancient animals seem to show beasts with several heads and multiple limbs? Are the multi-headed creature figures from mythology, folk art, or some kind of lost world?