The time it takes for a shark use and lose each tooth varies, depending on the species and age. Younger sharks replace their teeth more often. There is also some evidence that sharksâ teeth last significantly longer during colder water temperature in some sharks, a time when they traditionally eat less.
Last Titanic survivor, a baby put in a lifeboat, dies at 97. Millvina Dean taken ill with pneumonia in England, after Hollywood stars DiCaprio and Winslet came to her aid. Millvina Dean, the last living survivor of the Titanic disaster, with a painting of the vessel. Photograph: John Stillwell/AP.
Thirty years ago today on September 1, 1985, the 73-year-old Titanic wreckage was finally discovered. The tragedy of the RMS Titanic rocked the world on April 15, 1912, when the unsinkable ship destined for the U.S., hit an iceberg and took 1,500 innocent lives.