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Sensitive Teeth? Blame This Fish

Season 8 Episode 12 | 11m 08s

If you’ve ever experienced dental pain, you've probably wondered why our teeth would evolve to function like an oversensitive alarm system. To find the answer, we have to go way back to when teeth first evolved, as part of the armored skin of ancient fish.

Aired: 03/02/26
Extras
The cast play a game of "What's in the vet bag?" with sentimental props from the series.
Get ready for the all-new season, coming January 17, 2027 at 9/8c.
Celebrate the legacy of Gene Wilder, the actor behind Willy Wonka and Young Frankenstein.
Explore the site of the Battle of Camden and its importance to the American Revolution.
Scientists race to save the historic island on the Chesapeake Bay from rising sea levels.
The search for a sunken fort uncovers a powerful freedom story.
Tangier Island's lawns are turning into marshes. Can oyster reefs help?
Jimmy Webb, Vince Gill, Lyle Lovett and Ashley Campbell perform "Highwayman."
Sheléa performs "MacArthur Park" in this retrospective concert for Jimmy Webb.
Following tigers after dark reveals surprise encounters and a hidden world of family life.
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