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What is a butt? That\\u2019s what science journalist Katherine Wu wanted to know. Her quest for an answer leads her into a web of big butt questions, and a search to find the top butt scientists in the world. She discovers a debate over where butts come from, and a very strange butt that could rewrite the annals of butt history.

This episode features an original song called, \\u201cSometimes Butt.\\u201d Trust us, it\\u2019s a fun one! (And yes, we say the word \\u201cbutt\\u201d and other butt-related words a lot.)

Can\\u2019t get enough of butt science? There\\u2019s plenty more! Listen to a bonus interview episode with Katherine Wu, available to Patrons who support Tumble at a level of $1 a month or more. You\\u2019ll get access to an ad-free feed with all our bonus episodes, at patreon.com/tumblepodcast

This episode is based on Katherine\\u2019s article, \\u201cThe Body\\u2019s Most Embarrassing Organ is an Evolutionary Marvel.\\u201d Find more butt science resources on the blog on our website, sciencepodcastforkids.com.