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Hawksbills have a hawk-like beak that is used to cut through tough coral, anemones and sea sponges.Loggerheads have powerful jaws that crush shellfish and mollusks.• It is widely believed that hatchlings imprint the unique qualities of their natal beach while still in the nest and/or during their first trip from the nest to the sea. The female turtle emerges from the sea at night and ascends the beach, searching for a suitable nesting site (somewhere dark and quiet).

Using these two characteristics, a sea turtle may be able to determine its latitude and longitude, enabling it to navigate virtually anywhere.The Leatherback turtle lays some of these infertile eggs in every clutch, but the other species of sea turtle lay these eggs infrequently. This is called Temperature-Dependent Sex Determination (TSD).Warmer temperatures produce mostly females, and cooler temperatures produce a majority of males. Once a nest has been completed, the female never returns to it. Because hatchlings are small and the egg chambers are deep, it is almost impossible for a single hatchling to escape from the chamber alone.Although green sea turtles’ jaws are serrated, all sea turtles’ jaws lack teeth. Leatherbacks can dive to a depth of more than 1,000 meters (3,000 feet) in search of their prey, jellyfish. The leatherback is adapted to deep dives because of its unique morphology. As sea turtles are air breathing reptiles, they need to surface to breathe.The leatherback’s jaw has 2 prominent ‘cusps’ on the upper jawbone, distinguishing it from the other turtles. Unlike other sea turtles, the leatherback lacks a rigid breastbone that allows it to collapse during deep dives. Sea turtles can hold their breath for several hours, depending upon the level of activity.

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