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.
The image-which has been discovered a century on from the disaster in 1912 - shows body bags stacked on the windswept deck while two crewman tip up a stretcher to drop a victim over the side. First picture: Records show that 166 out of 306 bodies from the Titanic retrieved by the Mackay Bennett were buried at sea. The ship's priest, the Reverend Hind, is seen conducting the service in front of the crew.