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Tortoises and Turtles - Order Testudines

Tortoises and turtles (Order Testudines) are a unique group of reptiles that first appeared about 200 million years ago during the Late Triassic period. Since that time, turtles have changed little and it is quite possible that modern turtles closely resemble those that roamed the Earth during the time of the dinosaurs.

The 7 Species of Sea Turtles

The 7 Species of Sea Turtles

Celebrate World Turtle Day

World Turtle Day was initiated in 2000 by the American Tortoise Rescue, a California-based non-profit turtle and tortoise rescue organization founded in 1990.

Galapagos Tortoise - Geochelone nigra

The Galapagos tortoise (Geochelone nigra) is the largest of all living tortoises, reaching lengths of up to 4 feet and weights of over 350 lbs. Galapagos tortoises have long lifespans often living for over 100 years. These reptiles are vulnerable and suffer from the threats of introduced species.

Green Sea Turtle - Chelonia mydas

The green sea turtle (Chelonia mydas) is among the largest marine turtles and is also the most widespread. It grows to lengths of about 3 to 4 feet and weights of up to 200 kg. Its front limbs are flipper-like and are used to propel itself through the water.

Hawksbill Sea Turtle - Eretmochelys imbricata

The hawksbill sea turtle (Eretmochelys imbricata) is a critically endangered sea turtle. Its beautifully marked carapace, marbled with yellow, amber, and brown markings, has made it the target of commercial hunting for its tortoiseshell.

Leatherback Sea Turtle - Dermochelys coriacea

The leatherback sea turtle (Dermochelys coriacea) is unique among sea turtles because, unlike other sea turtles who have carapacees of hard bony plates, the leatherback's carapace is flexible and rubbery in texture.

Loggerhead Sea Turtle - Caretta caretta

The loggerhead sea turtle (Caretta caretta) is a marine turtle that grows to lengths of 28 to 39 inches. Caretta caretta is the world's largest hard-shelled turtle. Loggerhead sea turtles have large heads (when compared to other species of marine turtles) and strong, muscular jaws (which help them crush prey such as crabs and lobsters).

Navigating the High Seas - A Magnetic Theory

Sea turtles and salmon possess an astonishing ability to migrate vast distances from their birthplace and, years later, return to their home territory to reproduce. This navigational feat, known as natal homing, has baffled scientists for many decades.

Satellites Help Scientists Follow Endangered Loggerhead Turtles

The Cape Verde Islands off the coast of West Africa are an important nesting site for a colony of endangered loggerhead turtles. Threatened by intense fishing activity in the area, the number of loggerhead turtles has decreased drastically in recent years. Now, satellite tracking technology offers scientists a way to learn more about loggerheads and in turn better protect them.

Scientists Lose Contact with Loggerhead Turtle, Sodade

A recent press release by scientists working with seaturtle.org has revealed the loss of Sodade, one of the loggerhead turtles tagged in their satellite tracking study.

The Path of a Hatchling Sea Turtle

Female marine turtles bury their eggs on beaches and, having completed their only maternal obligation, return to the sea. Left behind, the unborn young must face the world on their own from the moment they emerge from their nest.

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