Turtle

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General

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The Turtles Portal (Wikipedia)

Dictionary

turtle : any of an order (Testudines synonym Chelonia) of terrestrial, freshwater, and marine reptiles that have a toothless horny beak and a shell of bony dermal plates usually covered with horny shields enclosing the trunk and into which the head, limbs, and tail usually may be withdrawn — Webster

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Encyclopedia

Turtles are reptiles of the order Testudines (or Chelonii) characterised by a special bony or cartilaginous shell developed from their ribs and acting as a shield. The order Testudines includes both extant (living) and extinct species. The earliest known members of this group date from 157 million years ago, making turtles one of the oldest reptile groups and a more ancient group than snakes or crocodilians. Of the 327 known species alive today, some are highly endangered.

Turtles are ectotherms—animals commonly called cold-blooded—meaning that their internal temperature varies according to the ambient environment. However, because of their high metabolic rate, leatherback sea turtles have a body temperature that is noticeably higher than that of the surrounding water.

Turtles are classified as amniotes, along with other reptiles, birds, and mammals. Like other amniotes, turtles breathe air and do not lay eggs underwater, although many species live in or around water. — Wikipedia

Encyclopædia Britannica

Introduction


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Swimming with turtles at Sipadan, Borneo (Tim Ecott, Wonderlust)

Search

WolframAlpha

Science



How Do Sea Turtles Find the Exact Beach Where They Were Born? (Carrie Arnold, National Geographic)
Sea turtle migration (Wikipedia)

Preservation



Turtle Conservancy (Official Website)
Turtle Conservancy (YouTube Channel)



The survival of the sea turtle (Scott Gass, TED-Ed)

Information About Sea Turtles, Their Habitats and Threats to Their Survival (Sea Turtle Conservancy)
Sea Turtle (Wikipedia)



Kemp’s Ridley Sea Turtle (Sea Turtle Conservancy)
Kemp’s Ridley Sea Turtle (Wikipedia)

History



An ancestral turtle from the Late Triassic of southwestern China (Chun Li, et al., Nature)

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Quotations Page

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Key West Turtle Museum

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OER Commons: Open Educational Resources

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May 23 is World Turtle Day (Wikipedia)

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Fiction

List of Fictional Turtles (Wikipedia)

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OEDILF: The Omnificent English Dictionary In Limerick Form

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Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • New marine protected areas connect hundreds of...
    on September 25, 2020 at 5:22 pm

    Three hundred and fifty square kilometers of Turkey's coastline has been brought under environmental protection in a recent announcement by the Turkish government. This new area represents a significant expansion of the existing marine protected area network along the country's Mediterranean coast and firmly establishes Turkey as a leader in marine conservation in the most overfished sea on the planet.

  • Caribbean islands face loss of protection and...
    on September 24, 2020 at 4:43 pm

    Tropical islands have an important ally when it comes to battling storms and sea-level rise: seagrass. During hurricane Irma, an extremely powerful Category 5 storm that hit the North Caribbean in 2017, NIOZ scientist Rebecca James witnessed how native seagrass meadows along the coast of Sint Maarten held their ground, reduced coastal erosion and lowered the chances of flooding. In the years of research during her Ph.D., she saw the pressures on this natural storm protection increasing. In her […]

  • Jaws of death: Paleontologist renames giant,...
    on September 23, 2020 at 7:48 am

    Some 92 to 66 million years ago, as the age of dinosaurs waned, giant marine lizards called mosasaurs roamed an ocean that covered North America from Utah to Missouri and Texas to the Yukon. The air-breathing predators were streamlined swimmers that devoured almost everything in their path, including fish, turtles, clams and even smaller mosasaurs.

  • Turtle scavenging critical to freshwater...
    on September 17, 2020 at 3:00 pm

    Freshwater turtles may have a role in regulating water quality in river systems by scavenging fish carcasses, suggests a study of Emydura macquarii, a vulnerable freshwater turtle species found in Australia. The findings are published in Scientific Reports.

  • Discovery of a new mass extinction
    on September 16, 2020 at 6:00 pm

    It's not often a new mass extinction is identified; after all, such events were so devastating they really stand out in the fossil record. In a new paper, published today in Science Advances, an international team has identified a major extinction of life 233 million years ago that triggered the dinosaur takeover of the world. The crisis has been called the Carnian Pluvial Episode.