 |
| Shark Teeth |
 |
| Smiling Shark |
Wednesday, November 14, 2012
Shark Fact #3
Shark teeth are popular and often inexpensive beach souvenirs. Sharks shed their teeth constantly, and once one falls to the ocean floor, it's quickly covered with sand. It soaks up sediments like silica and calcite, which change the tooth's color from white to gray or brown.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment