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Size of leatherback compared to human. Leatherback turtles have the most hydrodynamic body of any sea turtle, with a large, teardrop-shaped body. A large pair of front flippers powers the turtles through the water. Like other sea turtles, the leatherback has flattened forelimbs adapted for swimming in the open ocean.
It tends to weight slightly more average weight than the green sea turtle, and reaches more massive top sizes. The Loggerhead sea turtle ( Caretta caretta ) reaches a maximum size of 2.1 m (7 ft) and weight of 545 kg (1,202 lb), while the Green sea turtle ( Chelonia mydas ) reaches a maximum weight in the range of 395 to 500 kg (871 to 1,102 lb ...
Archelon is an extinct marine turtle from the Late Cretaceous, and is the largest turtle ever to have been documented, with the biggest specimen measuring 4.6 m (15 ft) from head to tail and 2.2–3.2 t (2.4–3.5 short tons) in body mass.
Sea turtles can be found in all oceans except for the polar regions. The flatback sea turtle is found solely on the northern coast of Australia. The Kemp's ridley sea turtle is found solely in the Gulf of Mexico and along the East Coast of the United States. [30] Sea turtles are generally found in the waters over continental shelves.
The loggerhead sea turtle ... [18] [19] Adults have an approximate weight range of 80 to 200 kg (180 to 440 ... Loggerheads have an average clutch size of 112.4 eggs ...
The average weight of mature individuals is 68–190 kg (150–419 lb) and the average carapace length is 78–112 cm (31–44 in). [27] They are considered the second largest sea turtle in the United States, after the leatherback sea turtle. [28]
Sizes among the seven species of sea turtles range from 71 to 213 cm; [2] for example, the smallest turtle species in the family Cheloniidae, the Kemp's Ridley, only has a shell size of about 75 cm and a weight of 50 kg. All species have a distinct hardened shell.
The neck of the Aldabra giant tortoise is very long, even for its great size, which helps the animal to exploit tree branches up to a meter from the ground as a food source. Similar in size to the famous Galápagos giant tortoise, its carapace averages 122 cm (48 in) in length. Males have an average weight of 250 kg (550 lb). [10]