Omnisource Answer:
TURTLE
Turtles, Tortoises, and Terrapins are reptiles of the order Testudines (all living turtles belong to the crown group Chelonia), most of whose body is shielded by a special bony or cartilagenous shell developed from their ribs. The Order Testudines includes both extant (living) and extinct species, the earliest turtles being known from around 250+ million years ago, making turtles one of the oldest reptile groups, and a much more ancient group than the lizards and snakes. About 300 species are alive today. Some are highly endangered. Turtles are ectothermic or cold-blooded, which means that their body temperature changes with their surroundings.
TORTOISE
A tortoise is a land-dwelling reptile of the order Testudines.
Like their aquatic cousins, the turtles, 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 tortoise has both an endoskeleton and an exoskeleton. Tortoises can vary in size from a few centimetres to two meters. Most land tortoises are herbivorous in the wild. The carapace can help indicate the age of the tortoise by the number of concentric rings, much like the cross-section of a tree. Males tend to have a longer, protruding neck plate than their female counterparts.
Tortoises tend to be diurnal animals with tendencies to be crepuscular depending on the ambient temperatures. They are generally reclusive and shy.
Most land based tortoises are herbivores, feeding on grazing grasses, weeds, leafy greens, flowers, and certain fruits. Their main diet consists of alfalfa, clover, dandelions, and leafy weeds.
Female tortoises dig and lay about a dozen eggs in burrows or holes they dig. Hatchlings take approximately 90-120 days to incubate from ping-pong-ball sized eggs. The hatchlings break out of their shells with a front beak. Most hatchlings are born with an embryonic egg sac, serving as a source of food for the first couple of days. They are capable of eating solid food in about 3-7 days.
2007-03-18 20:29:56
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answer #1
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answered by Omnisource 1
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Turtle: generic name for all shelled reptiles, and the term for aquatic or semi-aquatic species.
Tortoise: Technically, the term for all members of the Order Testudinidae, or the True Tortoises. True tortoises can be easily identified by elephant-likie front legs. The term is also applied more loosely to all turtles that live primarily on land.
You did not ask, but 'terrapin' is a cool term. In the US it is used in the South to refer to an edible turtle, often a cooter or snapper. It is also used to describe the brackish-water turtle called the Diamondback terrapin.
In Europe, 'terrapin' is a semi-aquatic turtle, what we often call a 'pond turtle'. In Australia, they make up their own rules and call a lot of aquatic turtles 'tortoises' (they do not have any true tortoises there, or even any native land turtles!)
Personally, I like using the terms:
- Turtle or Chelonian for all turtles
- Sea turtle for marine species
- Aquatic turtle for turtles taht rarely come out of the fresh water
- Pond turtle for the semi-aquatic turtles
- Land turtle for those that mostly live on land but are not true tortoises
- Tortoise for true tortoises with teh elephant-like front legs.
2007-03-19 14:24:55
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answer #2
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answered by Madkins007 7
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For the most part, the difference between a turtle and tortoise is more of a rough semantic category than a strict taxonomic separation. Colloquially, both biologists and lay people use the word, "turtle" to mean all chelonians. In general, turtles live in or near the water and have adapted to swim by holding their breath underwater. Tortoises live primarily in arid regions, built for storing their own water supply and walking on sandy ground.
2007-03-19 12:00:19
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answer #3
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answered by durga v 2
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Turtle can swim in water, tortoise cannot!
(they each have different feet to accommodate their habitat).
2007-03-19 03:17:41
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answer #4
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answered by love_2b_curious 6
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turtles live in water while tortoice live on land
tortoice have legs while the other has flippers
2007-03-19 03:41:35
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answer #5
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answered by rachel 2
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