Sea turtles have been gliding peacefully through their underwater world for many millions of years. Adults reach vast ages, and faithfully return ashore to their native beaches to lay the eggs that begin the next generation. Sea turtles may have survived many catastrophic threats over the millennia, but in the modern world, mankind has helped to bring six of our seven species close to extinction. This beautifully illustrated portrait takes a comprehensive look at the natural history of these endearing creatures.