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About 50% of female sea turtles complete "false crawls," which occur when they crawl onto the beach but return to the water without laying eggs.
Lizards that lay fewer, but larger eggs are at higher risk for egg binding, and so there is selection pressure towards a minimum clutch size. For example, in common side-blotched lizards , females that lay fewer than the average 4–5 eggs per clutch have significantly increased risk of egg binding.
While most species build nests and lay eggs where they forage, some travel miles. The common snapping turtle walks 5 km (3 mi) on land, while sea turtles travel even further; the leatherback swims some 12,000 km (7,500 mi) to its nesting beaches. [13] [89] Most turtles create a nest for their eggs. Females usually dig a flask-like chamber in ...
Many turtles from the same beaches show up at the same feeding areas. Once reaching sexual maturity in the Atlantic Oceans, the female Loggerhead makes the long trip back to her natal beach to lay her eggs. The Loggerhead sea turtle in the North Atlantic cover more than 9,000 miles round trip to lay eggs on the North American shore.
The olive ridley sea turtle (Lepidochelys olivacea), also known commonly as the Pacific ridley sea turtle, is a species of turtle in the family Cheloniidae. The species is the second-smallest [ 4 ] [ 5 ] and most abundant of all sea turtles found in the world.
The Arrau turtle (Podocnemis expansa), also known as the South American river turtle, giant South American turtle, giant Amazon River turtle, Arrau sideneck turtle, Amazon River turtle or simply the Arrau, [1] [3] [4] [5] is the largest of the side-neck turtles and the largest freshwater turtle in Latin America. [5]
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The leatherback sea turtle (Dermochelys coriacea), sometimes called the lute turtle, leathery turtle or simply the luth, is the largest of all living turtles and the heaviest non-crocodilian reptile, reaching lengths of up to 2.7 metres (8 ft 10 in) and weights of 500 kilograms (1,100 lb).