When it comes to endangered animals many get a much higher profile than the Great White Shark. It seems, though that it is now more endangered than the tiger with only 3,500 left. The findings have led to marine biologists to call for urgent action to stop them going extinct. The population estimates come after a scientists studied and tagged the migration of the sharks using radio transmitters. What was surprising is that great whites travel much longer distances that previously thought, anything up to 12,000 miles in a nine month period. The researchers found that sharks seen in Hawaii were the same ones that were found in California just six months later leading experts to the conclusion there are far fewer sharks left in the sea. Whilst great whites have a bad reputation for attacking people most incidents are thought to be due to the shark mistaking people for seals. With so few left and the fact that most people have little love for sharks, it seems they might not be around for much longer.