Sharks are majestic creatures.
However, until now scientists have failed to explain just why sharks appear to have such and effective teeth. Researchers now believe they have found the answer – and it’s found in the toothpaste we all use every day.
Scientists at the University of Duisburg-Essen discovered that the voracious predators secret is flouride. They found the outside of shark teeth is made up of fluoride, the active component of most toothpaste. Although human teeth are covered in a different mineral, both shark and human teeth are equally hard. Researchers already knew sharks never get cavities, and are able to replace their teeth multiple times throughout their lives.
- Shark Teeth Have Built-In Toothpaste (news.discovery.com)
- Why sharks don’t need to brush their teeth? (crunchedd.com)
- A Design to Supplant the Toothbrush? (core77.com)
- Help…SHARK! (teacherlingo.com)
- 18-ft. great white attacks a kayak (timesleader.com)