Skip to main content
Back to Show
Eons

Sensitive Teeth? Blame This Fish

Season 8 Episode 12

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.

Support Provided By
Season
How We Identified One of Earth’s Earliest Animals
10:44
The key to solving the puzzle of Precambrian life was a tiny bit of fossilized fat.
The Two Viruses That We’ve Had For Millions of Years
9:11
The two viruses that we’ve had for millions of years.
How Plants Caused the First Mass Extinction
9:31
The arrival of plants on land would eventually help cause a massive extinction event.
How the Andes Mountains Might Have Killed a Bunch of Whales
8:27
Cerro Ballena has over 40 skeletons of marine mammals from the Late Miocene Epoch.
The Risky Paleo Diets of Our Ancestors
7:59
Part of a secret to our success as a species has been our early experimentation with food.
When a Billion Years Disappeared
11:09
Some rocks below the Great Unconformity are 1.2 billion years older than those above it.
How Dogs (Eventually) Became Our Best Friends
9:21
It took thousands of years of interactions to develop our deep bond with dogs.
How the Egg Came First
8:44
We’re here to tell you: The egg came first.
Were These Monsters Inspired by Fossils?  (ASL)
12:18
Is it possible that monsters that populate our legends were influenced by the fossil record?
When Giant Lemurs Ruled Madagascar (ASL)
10:09
Just a few thousand years ago, Madagascar was inhabited by giant lemurs.
When We Took Over the World
11:47
When We Took Over the World
The Ghostly Origins of the Big Cats
7:32
Scientists have recently discovered a major clue about the origins of the big cats.
Active loading indicator