From Wikipedia, the free encyclopedia
Jump to: navigation, search
The Turtles Portal


Loggerhead sea turtle

Turtles are reptiles characterised by a special bony or cartilaginous shell developed from their ribs that acts as a shield. The earliest known turtles date from 157 million years ago. Turtles are ectotherms—they vary their internal temperature according to the ambient environment (commonly known as cold-bloodedness). However, leatherback sea turtles have noticeably higher body temperature than surrounding water because of their high metabolic rate. Though turtles live in and around water, they breathe air and lay eggs on land.

More about the turtle...
Show new selected content...

Selected article

Hawksbill sea turtle
The hawksbill sea turtle (Eretmochelys imbricata) is a critically endangered sea turtle belonging to the family Cheloniidae. It is the only species in its genus. The species has a worldwide distribution, with Atlantic and Pacific subspecies. E. imbricata imbricata is the Atlantic subspecies, while E. imbricata bissa is found in the Indo-Pacific region.

The hawksbill's appearance is similar to that of other marine turtles. It has a generally flattened body shape, a protective carapace, and flipper-like arms, adapted for swimming in the open ocean. E. imbricata is easily distinguished from other sea turtles by its sharp, curving beak with prominent tomium, and the saw-like appearance of its shell margins. Hawksbill shells slightly change colors, depending on water temperature. While this turtle lives part of its life in the open ocean, it spends more time in shallow lagoons and coral reefs.

Human fishing practices threaten E. imbricata populations with extinction. The World Conservation Union classifies the Hawksbill as critically endangered.


People icon.svg

WikiProjects related to turtles:

Did you know?

  • ... that yellow-bellied sliders, popular as pets, are found in a wide variety of habitats, including rivers, floodplain swamps, seasonal wetlands, and permanent ponds?

Selected picture

C insculpta.jpg
Credit: Faendalimas

A young pig-nosed turtle (Carettochelys insculpta)) in captivity in Slovakia. Showing the "flying" mode of swimming of this species.


Article alerts for WikiProject Turtles

No Article alerts at this time.

Updated daily

Things you can do

Get involved with WikiProject Turtles discussion.

Here are some tasks awaiting attention:


Featured article Represents a Featured article or a Featured list, Represents a Good article

Related portals

Nuvola apps kalzium.png
Issoria lathonia.jpg
Tree of life.svg
Animal diversity October 2007 for thumbnail.jpg
Rhacodactylus ciliatus.jpg
Science Biology Evolutionary biology Animals Amphibians and
Extinct and Endangered Species


Turtles on Wikicommons Turtles on Wikibooks  Turtles on Wiktionary Turtles on Wikispecies
Images Books Dictionary Species repository

Purge server cache