Talking about shark teeth, Dr. Marks points out some interesting facts:
- Shark’s teeth aren’t attached to roots or gums like our teeth.
- They generally lose a minimum of at least 1 tooth per week.
- They lose their teeth when they get stuck in their prey and are fractured out.
- Their teeth are placed in neat rows and are replaced within a day of losing one.
- Sharks can have up to 15 rows of teeth in each jaw, but most have around 5 rows. The bull shark can have 50 rows of teeth.
- Shark teeth can be found on many beaches since sharks shed 1000’s of teeth during their lifetime.
- Shark teeth are common fossils. It takes about 10,000 yrs for the teeth to fossilize. The most common shark teeth fossils are from an era of 65,000 years ago (the Cenozoic era).
- Baby sharks have a complete set of teeth when they are born and immediately swim away from their mothers to hunt for themselves.
- Gigantic Whale Sharks average over 3,000 tiny teeth that have little use, since they are filter feeders and sift food through their gills.
- A tooth of a prehistoric megalodon shark can be from from 3.5 to 7 inches in length, & can weigh more than a pound!
- Recently it was discovered that shark’s teeth contain fluoride.
- Sharks don’t get cavities- since their teeth keep falling out!
- The enamel of their teeth are acid resistant and not as water soluble as human teeth.
- Shark’s and human teeth have the same hardness as each other.