Today's Episode

May 26, 2023

A project looking at 240 mammals’ genomes, including that of the heroic sled dog Balto, offers a new view of evolutionary history. Plus, how the universe helped an astronomer find comfort after the loss of her husband. And, studying pain in the genetics of a woman who doesn’t experience pain at all.


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The Story of Saliva

Why do newborns drool excessively? How many pints of saliva does a person generate daily? (Hint, it’s more than one.) And more spit mysteries excerpted from “Gulp: Adventures Down the Alimentary Canal.”

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