Sea turtles also have enemies. Adult Sea turtles have few predators, mostly large sharks. Tiger sharks in particular, are known for eating sea turtles. Killer whales have been known to prey on Leatherback turtles. Fishes, dogs, sea birds, and other predators prey on the eggs and hatchlings.
Scientists believe that turtles live longer than any other back boned animal.
Some Bow turtles and tortises have lived more than 100 years. The turtle continues to grow after reaching this age, but at a much slower rate. The Arcelon, a Sea turtle of about 3.7 meters long died out as did many other species. On land many turtles are slow lumbering creatures, but some land turtles can move with surprising speed. The hatchlings of the female Green sea turtles also have their own enemies.