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848: The History Of Teeth, From Ancient Fish To Humans
Manage episode 436926197 series 3381328
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Your teeth don’t just chew your food—they connect you to the deepest of deep history on Earth. Teeth have existed, in some form, for half a billion years, making them more than 250 million years older than dinosaurs. They came before the evolution of warm bloodedness, eggs, and even limbs. From that very first set of chompers emerged a bewildering and diverse group of teeth, including narwhal tusks, sharks’ pearly teeth, snake fangs, and, of course, ours.
Now teeth are the subject of a new book called Bite: An Incisive History of Teeth from Hagfish to Humans. Guest host Maggie Koerth talks with zoologist and author Dr. Bill Schutt about how teeth evolved, why they’re so neat, and what we can learn from studying them.
Read an excerpt of Bite: An Incisive History of Teeth from Hagfish to Humans.
Transcripts for each segment will be available after the show airs on sciencefriday.com.
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