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.
There is one woman still alive who was on the Titanic as a baby, but she cannot possibly remember anything about it. Twenty years or so ago, there were still quite a few people alive who could actually remember the Titanic going down, and they spoke most eloquently and interestingly on the subject. There are a number of documentaries made which feature interviews with survivors, and they are very interesting.