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Most sea turtle mortality happens early in life. Sea turtles usually lay around 100 eggs at a time, but on average only one of the eggs from the nest will survive to adulthood. Raccoons, foxes, and seabirds may raid nests or hatchlings may be eaten within minutes of hatching as they make their initial run for the ocean.
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).
The green sea turtle ( Chelonia mydas ), also known as the green turtle, black (sea) turtle or Pacific green turtle, [4] is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. [5] Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the ...
Kemp's ridley is the smallest of all sea turtle species, reaching maturity at 58–70 cm (23–28 in) carapace length and weighing only 36–45 kg (79–99 lb). [14] Typical of sea turtles, it has a dorsoventrally depressed body with specially adapted flipper-like front limbs and a beak. Kemp's ridley turtle adults reach a maximum of 75 cm (30 ...
The loggerhead sea turtle ( Caretta caretta) is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The average loggerhead measures around 90 cm (35 in) in carapace length when fully grown. The adult loggerhead sea turtle weighs approximately 135 kg (298 lb), with the ...
Turtles, or testudines, are reptiles of the order Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts. There are 360 living and recently extinct ...
Less is known about the life history of hawksbills by comparison to several other sea turtle species. Their life history may be divided into three phases, the: (i) early life history phase from approximately 4–30 cm straight carapace length, (ii) benthic phase when the immature turtles recruit to foraging areas, and (iii) reproductive phase ...
Márquez, 1990. (ex errore) 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. L. olivacea is found in warm and tropical waters, primarily ...