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Sea Turtle

by Marcia Colelli

Canvas Print

$80

Framed Print

$89

Art Print

$28

Poster

$28

Metal Print

$86

Acrylic Print

$94

Wood Print

$66

Tapestry

$39

Throw Pillow

$24

Fleece Blanket

$46

Duvet Cover

$98

Shower Curtain

$68

Bath Towel

$33

Ornament

$9.50

Jigsaw Puzzle

$38

Tote Bag

$23

Weekender Tote Bag

$43

Zip Pouch

$22

Portable Battery Charger

$47

Yoga Mat

$60

Greeting Card

$4.95

Spiral Notebook

$15

Sticker

$3.50

iPhone Case

$26

Beach Towel

$33

Round Beach Towel

$70

Weekender Tote Bag

$43

Coffee Mug

$14

Men's Clothing

$26

Women's Clothing

$26

Youth Clothing

$22

Toddler Clothing

$20

Baby Clothing

$24

Title

Sea Turtle

Artist

Marcia Colelli

Medium

Photograph - Photographs

Description

Sea turtles (superfamily Chelonioidea), sometimes called marine turtles, are reptiles of the order Testudines and of the suborder Cryptodira. The seven existing species of sea turtles are the green sea turtle, loggerhead sea turtle, Kemp's ridley sea turtle, olive ridley sea turtle, hawksbill sea turtle, flatback sea turtle, and leatherback sea turtle.
The majority of a sea turtle's body is protected by its shell. The leatherback sea turtle is the only sea turtle that does not have a hard shell. Instead, it bears a mosaic of bony plates beneath its leathery skin.
It is important to note that for each of the seven types of sea turtles, there is no differentiation between the size of the turtles based on sex.
In general, sea turtles have a more fusiform body plan than their terrestrial or freshwater counterparts. The reduced volume of a fusiform (tapering at both ends) body means sea turtles cannot retract their head, legs, and arms into their shells for protection like other turtles can. However this more streamlined body plan reduces drag in the water and allows the turtle to swim more easily, with less friction.
It takes decades for sea turtles to reach sexual maturity. Mature sea turtles may migrate thousands of miles to reach breeding sites. After mating at sea, adult female sea turtles return to land to lay their eggs. Different species of sea turtles exhibit various levels of philopatry. In the extreme case, females return to the same beach where they hatched. This can take place every two to four years in maturity.
The mature nesting female hauls herself onto the beach, nearly always at night, and finds suitable sand in which to create a nest. Using her hind flippers, she digs a circular hole 16 to 20 in deep. After the hole is dug, the female then starts filling the nest with her clutch of soft-shelled eggs. Depending on the species, a typical clutch may contain 50–350 eggs. After laying, she re-fills the nest with sand, re-sculpting and smoothing the surface, and then camouflaging the nest with vegetation until it is relatively undetectable visually. The whole process takes 30 to 60 minutes. She then returns to the ocean, leaving the eggs untended.
Females may lay 1–8 clutches in a single season. Female sea turtles alternate between mating in the water and laying their eggs on land. Most sea turtle species nest individually. But ridley sea turtles come ashore en masse, known as an arribada (arrival). With the Kemp's ridley sea turtle this occurs during the day.
Sea turtles have temperature-dependent sex determination, meaning the developing baby sea turtle's sex depends on the temperature it is exposed to. Warmer temperatures produce female hatch-lings, while cooler temperatures produce male hatch-lings. The eggs will incubate for 50–60 days. The eggs in one nest hatch together over a short period of time. The baby sea turtles break free of the egg shell, dig through the sand, and crawl into the sea. Most species of sea turtles hatch at night. However, the Kemp's ridley sea turtle commonly hatches during the day. Sea turtle nests that hatch during the day are more vulnerable to predators, and may encounter more human activity on the beach.
Sea turtle gender depends on sand temperature while the egg is incubating.

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