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plates usually covered with horny shields enclosing the trunk and into which the head, limbs, and tail usually may be withdrawn — Webster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)

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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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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.

  • Bottom trawling harms the ocean—and the climate
    on April 16, 2021 at 5:10 pm

    The destructive effects of ocean-bottom trawling are easy enough to imagine from any basic description of the practice. Heavy nets 100 yards wide, equipped with weighted rollers and steel doors, are dragged across the seafloor to scoop up cod, halibut, flounder, rockfish, shrimp and other deep-dwelling prey.

  • Steep decline in giant sea turtles seen off US...
    on April 8, 2021 at 4:15 pm

    Scientists were documenting stranded sea turtles on California's beaches nearly 40 years ago when they noticed that leatherbacks—massive sea turtles that date to the time of the dinosaurs—were among those washing up on shore. It was strange because the nearest known population of the giants was several thousand miles away in the waters of Central and South America.

  • Researchers illuminate mystery of sea turtles'...
    on April 8, 2021 at 4:00 pm

    "Not all those who wander are lost ... " —J.R.R. Tolkien

  • Marine life is fleeing the equator to cooler...
    on April 8, 2021 at 1:20 pm

    The tropical water at the equator is renowned for having the richest diversity of marine life on Earth, with vibrant coral reefs and large aggregations of tunas, sea turtles, manta rays and whale sharks. The number of marine species naturally tapers off as you head towards the poles.

  • Parts of U.S.'s southernmost states will...
    on April 7, 2021 at 8:27 am

    As climate change reduces the frequency and intensity of killing freezes, tropical plants and animals that once could survive in only a few subtropical parts of the U.S. are expanding their ranges northward, according to a new study led by the U.S. Geological Survey. This change is likely to result in some temperate zone plant and animal communities found today across the southern U.S. being replaced by tropical plant and animal communities.