La tortue verte de mer au parc national Marino Ballena

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La tortue verte de mer au parc national Marino Ballena
La tortue verte de mer au parc national Marino Ballena

The green sea turtle, also known as the green turtle, black turtle or Pacific green turtle, is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. The green sea turtle (Chelonia mydas), also known as the green turtle, black (sea) turtle or Pacific green turtle, is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans, but it is also found in the Indian Ocean. The common name refers to the usually green fat found beneath its carapace, not to the color of its carapace, which is olive to black.

The dorsoventrally flattened body of C. mydas is covered by a large, teardrop-shaped carapace; it has a pair of large, paddle-like flippers. It is usually lightly colored, although in the eastern Pacific populations, parts of the carapace can be almost black. Unlike other members of its family, such as the hawksbill sea turtle, C. mydas is mostly herbivorous. The adults usually inhabit shallow lagoons, feeding mostly on various species of seagrasses. The turtles bite off the tips of the blades of seagrass, which keeps the grass healthy.

Like other sea turtles, green sea turtles migrate long distances between feeding grounds and hatching beaches. Many islands worldwide are known as Turtle Island due to green sea turtles nesting on their beaches. Females crawl out on beaches, dig nests, and lay eggs during the night. Later, hatchlings emerge, and scramble into the water. Those that reach maturity may live to 90 years in the wild.

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Taken on: March 6, 2018
Tags: Everybody's photos tagged with Costa Rica Costa Rica
Sets appears in:   • Le Costa Rica   
Camera: NIKON COOLPIX W100, f/3.3, 1/500 sec, 4.1mm, ISO 125 (more info) (hide info)
Camera: NIKON COOLPIX W100
Aperture: f/3.3
Exposure Time: 0.002 sec (1/500)
Focal Length: 4.1mm
ISO: 125
Exposure Bias: 0 EV
Flash: Off, Did not fire
Exposure Program: Program AE
Exposure Mode: Auto
Metering Mode: Multi-segment
White Balance: Auto
Color Space: Uncalibrated
Software: Photos 2.0
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