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What is a sea turtle's diet -

21-12-2016 à 14:23:30
What is a sea turtle's diet
Instead, it bears a mosaic of bony plates beneath its leathery skin. Sea turtles are generally found in the waters over continental shelves. The leatherback is the only sea turtle that does not have a hard shell. They are normally found near reefs rich in the sponges they like to feed on. They avoid deep waters, preferring coastlines where sponges are abundant and sandy nesting sites are within reach. The leatherback is the largest species of sea turtle. Sea turtles, along with other turtles and tortoises, are part of the order Testudines. The nesting procedure begins when the turtles leave the sea to choose an area to lay their eggs. Sea turtles can be found in oceans except for the polar regions. A further distinctive feature is a pair of claws adorning each flipper. After mating at sea, adult female sea turtles return to land to lay their eggs. Phylogenetic relations of living and extinct chelonioid species. The leatherback is the only extant member of the family Dermochelyidae. The origin of sea turtles goes back to the Late Jurassic (150 million years ago) with genera such as Plesiochelys, from Europe. Different species of sea turtles exhibit various levels of philopatry. Hawksbill turtles are found throughout the tropical waters of the Atlantic, Pacific, and Indian Oceans. Sea turtles are able to grow so large because of the immense size of their habitat: the ocean.


Their hard shells protect them from many predators, but they still fall prey to large fish, sharks, crocodiles, octopuses, and humans. During the first three to five years of life, sea turtles spend most of their time in the pelagic zone floating in seaweed mats. Mature turtles may migrate thousands of miles to reach breeding sites. An olive ridley sea turtle, a species of the sea turtle superfamily. Mating occurs every two to three years and normally takes place in shallow waters close to the shore. Like other sea turtles, hawksbills make incredible migrations in order to move from feeding sites to nesting grounds, normally on tropical beaches. The habitat of a sea turtle has a significant influence on its morphology. It takes decades for sea turtles to reach sexual maturity. In general, sea turtles have a more fusiform body plan than their terrestrial or freshwater counterparts. Not particularly large compared with other sea turtles, hawksbills grow up to about 45 inches (114 centimeters) in shell length and 150 pounds (68 kilograms) in weight. A lineage of unrelated marine testudines, the pleurodire bothremydids, also survived well into the Cenozoic. The flatback sea turtle is found solely on the northern coast of Australia. The shell is made up of smaller plates called scutes. Hawksbills are omnivorous and will also eat mollusks, marine algae, crustaceans, sea urchins, fish, and jellyfish. While young, their carapace, or upper shell, is heart-shaped, and as they mature it elongates. In the extreme case, females return to the beach where they hatched. Their strikingly colored carapace is serrated and has overlapping scutes, or thick bony plates. Male hawksbills have longer claws, thicker tails, and somewhat brighter coloring than females. All species except the leatherback are in the family Cheloniidae.

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what is a sea turtles diet
What is a sea turtle's diet

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