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The turtle shell is a shield for the ventral and dorsal parts of turtles (the order Testudines), completely enclosing all the vital organs of the turtle and in some cases even the head. [1] It is constructed of modified bony elements such as the ribs, parts of the pelvis and other bones found in most reptiles.
A tortoiseshell ornament from Micronesia Cabinet with tortoiseshell veneers French singing bird box with a case made out of tortoiseshell.. Tortoiseshell or tortoise shell is a material produced from the shells of the larger species of tortoise and turtle, mainly the hawksbill sea turtle, which is a critically endangered species according to the IUCN Red List largely because of its ...
Oracle bone script is the oldest attested form of written Chinese, dating to the late 2nd millennium BC.Inscriptions were made by carving characters into oracle bones, usually either the shoulder bones of oxen or the plastrons of turtles.
The alligator snapping turtle is given its common name because of its immensely powerful jaws and distinct ridges on its shell that are similar in appearance to the rough, ridged skin of an alligator. It is also slightly less commonly known as "the loggerhead snapper" (not to be confused with the loggerhead sea turtle or loggerhead musk turtle).
Aquatic turtles have flatter, smoother shells that allow them to cut through the water. Sea turtles in particular have streamlined shells that reduce drag and increase stability in the open ocean. Some turtle species have pointy or spiked shells that provide extra protection from predators and camouflage against the leafy ground. The lumps of a ...
The Cherokee, like many other Native tribes, used the number of scutes on the backs of certain species of turtles to determine their calendar cycle. The scutes around the edge added up to 28, the same number of days as in a lunar cycle, while the center contained 13 larger scutes, representing the 13 moon cycles of a year. [1] [2] Turtle shell ...
Turtle carapaces and scutes from Red Sea turtles (Eretmochelys imbricata) were used in rings, bracelets, dishes, bowls, knife hilts, amulets, and combs. Carapaces from Kleinmann's tortoise were used as sounding boards for lutes, harps and mandolins. [16] Turtle shells were also used to make norvas, an instrument resembling a banjo. [26]
Diagram of a prawn, with the carapace highlighted in red. A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises.