Tortoise

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tortoise : any of a family (Testudinidae) of terrestrial turtles — Webster

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Tortoises are a family, Testudinidae. Testudinidae is a Family under the order Testudines and suborder Cryptodira. There are fourteen extant families of the order Testudines, an order of reptile commonly known as turtles, tortoises, and terrapins. The suborder Cryptodira is a suborder of Testudines that includes most living tortoises and turtles. Cryptodira differ from Pluerodia in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the shells’ marginals. The testudines are some of the most ancient reptiles alive. Tortoises are shielded from predators by a shell. The top part of the shell is the carapace, the underside is the plastron, and the two are connected by the bridge.

The carapace is fused to both the vertebrae and ribcage, and tortoises are unique among vertebrates in that the pectoral and pelvic girdles are inside the ribcage rather than outside. Tortoises can vary in dimension from a few centimeters to two meters. They are usually diurnal animals with tendencies to be crepuscular depending on the ambient temperatures. They are generally reclusive animals. Tortoises are the longest living land animal in the world, although the longest living species of tortoise is a matter of debate. Galápagos tortoises are noted to live over 150 years, but an Aldabra giant tortoise named Adwaita may have been the longest living at an estimated 255 years. In general, most tortoise species can live 80–150 years. — Wikipedia

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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.

  • Ecuador policeman held over 185 baby tortoises in...
    on March 30, 2021 at 7:28 am

    An Ecuadorian policeman has been arrested after airport officials in the Galapagos Islands discovered 185 baby giant tortoises stuffed in a suitcase to be trafficked, prosecutors said Monday.

  • Global biodiversity awareness tracked with...
    on March 22, 2021 at 8:00 am

    Wikipedia page views could be used to monitor global awareness of biodiversity, proposes a research team from UCL, ZSL, and the RSPB.

  • Fire away: Removing imported red fire ant could...
    on March 12, 2021 at 12:15 pm

    The aptly named gopher tortoise is a keystone species of the southeastern United States, digging burrows that can extend more than 30 feet and serve as a habitat for more than 350 other species. Unfortunately, one of them is the red imported fire ant, an invasive species from South America that likely arrived in the 1930s and is named for the fiery sensation that often follows its sting.

  • Galapagos island gets 36 endangered giant...
    on March 4, 2021 at 6:50 pm

    Three dozen endangered giant tortoises, born and raised in captivity, have been released into the wild on one of the Galapagos islands, where their kind is from.

  • Bahamas were settled earlier than believed,...
    on March 2, 2021 at 12:03 pm

    Humans were present in Florida by 14,000 years ago, and until recently, it was believed the Bahamas—located only a few miles away—were not colonized until about 1,000 years ago. But new findings from a team including a Texas A&M University at Galveston researcher prove that the area was colonized earlier, and the new settlers dramatically changed the landscape.