Green sea turtles have habitats on land for nesting and habitats in shallow and open water areas of the ocean. Female green turtles use beaches to nest. Because sea turtles are an endangered species, part of some beaches close off to protect hatching grounds when females are nesting.
Female green sea turtles dig pits in the sand, laying an average of 100 eggs in the pit. A layer of sand is used to cover the nest. The female completes the nest and returns to the ocean. Females spend their time at different foraging grounds until their next mating season, which occurs roughly every 2 to 4 years.
Green sea turtles mate in shallow foraging grounds. The females then travel, sometimes thousands of miles, back to established breeding sites. Several generations of related females may use the same nesting grounds.
When the baby turtles, or hatchlings, are born, they head straight for the ocean. Hatchlings spend their juvenile years in deeper offshore waters, feeding on a diet of marine plants and small marine life, such as jellyfish.
As juveniles age, they move from the offshore waters to the warmer, shallower waters closer to shore where abundant sea grass grows. Sea grass, algae and other sea plants comprise the adult diet. Adult green sea turtles spend the majority of their lives in habitats with shallow water.