© 2026. The Trustees of Indiana University
Copyright Complaints
1229 East Seventh Street, Bloomington, Indiana 47405
News, Arts and Culture from WFIU Public Radio and WTIU Public Television
Give Now
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

teeth

  • A skeleton of a saber-toothed tiger. (Ryan Somma, Wikimedia Commons)
    Saber-Toothed Tigers Were Really, Really Big
    Sara Loy
    Maine Coons seem huge for domesticated cats. But Smilodon populator is the biggest species of one of the biggest cats of all time: the saber-toothed tiger.
  • A sea urchin has five teeth, each in its own jaw, arranged in a circle at the center of their bodies. (Steve Jurvetson, Wikimedia Commons)
    Sea Urchin Teeth
    Victoria Clare
    Sea urchins are small, furry, and sometimes colorful. They usually don't bite humans, but they do have really sharp teeth that researchers learned sharpen themselves.