Anatomical Marvels: Nature's Unique Uses of the Anus

The anus is an evolutionary marvel. But how and when did this organ evolve into what it is today? Today on Short Wave, Maddie gets to the bottom of these questions with The Atlantic's science writer Katherine Wu.

For more of Katherine's reporting, check out 'The Body's Most Embarrassing Organ Is an Evolutionary Marvel' from The Atlantic.

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