Sea Turtles are large, air breathing reptiles that inhabit tropical and sub tropical seas who have been around for over 100 million years. They are generally solitary creatures who rarely interact with each other unless for mating or courtship even when large numbers come together for feeding. They generally like to stay submerged at sea for much of the time being able to hold their breath for 5 hours which makes them very difficult to study. They are 7 different species of sea turtles and they are all very important in our oceans as they keep seagrasses short and help keep the balance of species with hawksbill turtles feeding on jellyfish. Sea turtles nest on beaches to lay their eggs but do not stay with the eggs but instead return to the sea. This means that sea turtle hatchlings are on their own to make it to the sea  against predators which results in only 1% of them making it to adulthood. Interestingly the temperature determines the sex of a sea turtle with hotter temperatures creating more females and cooler temperatures more males. Unlike other turtles, sea turtles cannot retreat their bodies into their shells and over the past 200 years humans have been tipping the scales against the survival of this ancient species due to increasing threats.