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.
Sunday 31 May 2009 19.46 EDT First published on Sunday 31 May 2009 19.46 EDT. The last living survivor of the Titanic, Â­Millvina Dean, has died at the age of 97 in Southampton after catching pneumonia. As a two-month-old baby, Dean was the youngest passenger on board the giant liner when it sank on its maiden voyage with the loss of more than 1,500 lives.