Difference between revisions of "AY Honors/Small Mammal Pets/Answer Key"

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{{Taxobox
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''''''RABBITS RULE THE WORLD!!!!!!!!!!!!!!!!!!!!!'''''' :''This article concerns a particular breed of rabbit, the Netherland dwarf.  For information on domestic rabbits in general, see [[Domestic rabbit]].''
| color = pink
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''For information on the country, see [[Netherlands]]''
| name = Chinese Hamster
 
| image = Chinese Hamster.jpg
 
| image_width = 220px
 
| image_caption = Chinese hamster, white-spotted type
 
| regnum = [[Animal]]ia
 
| phylum = [[Chordate|Chordata]]
 
| classis = [[Mammal]]ia
 
| ordo = [[Rodentia]]
 
| familia = [[Cricetidae]]
 
| genus = ''[[Cricetulus]]''
 
| species = '''''C. griseus'''''
 
| binomial = ''Cricetulus griseus''
 
}}
 
The '''Chinese Hamster''' is a species of [[hamster]], scientific name ''Cricetulus griseus'', which originate in the [[desert]]s of northern [[China]] and [[Mongolia]]. These animals grow to between 7.5 and 9 cm in length and as adults can weight 50-75 grams. They live two to three years on average.
 
  
A Chinese hamster's body proportions, compared with those of other hamsters, appear "long and thin" and they have (for a hamster) a relatively long tail. Chinese hamsters are not, technically, [[dwarf hamster|"dwarf" hamsters]] since this term refers to animals in the genus ''Phodopus'', (the two types of [[Phodopus sungorus|Russian Dwarf Hamster]]s and [[Phodopus roborovski|Roborovskii Dwarf Hamster]]s).
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[[Image:Netherlanddwarfbunny.jpg|right|thumb|A pet Netherland Dwarf]]
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The '''Netherland Dwarf''' is a popular [[breed]] of [[domestic rabbit]] (''Oryctolagus cuniculus''). Smaller than most [[List of rabbit breeds|rabbit breeds]], Netherland dwarf rabbits weigh 1 to 3 [[pound (mass)|lb]] (0.5 to 1.4 kg) and are usually kept as [[pet]]s or exhibition animals.  They are not typically used as sources of [[meat]] or [[fur]] because their small size makes them inefficient for these purposes.
  
The wild colour is greyish brown above with a black stripe down the spine and a whitish belly.  This colouration, combined with their lithe build and longer tail, makes them look "mousy" to some eyes and, in fact, they are members of the group called [[ratlike hamster|ratlike hamsters]]. Besides the wild colour, a well-known variation is the white-spotted Chinese hamster, which often is greyish white all over, with only a dark stripe on its back.
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Most rabbits sold in [[pet store]]s are Netherland dwarfs, Netherland dwarf-[[selective breeding|derived breeds]] (often referred to simply as ''[[#Dwarf breeds|dwarf breeds]]''), or dwarf [[hybrid|crosses]]. Their popularity as pets stems from their [[baby]]ish appearance and their [[cage]] space requirement, which is smaller than that of larger rabbit breeds.
  
They have quiet temperaments and are easily handled; one of their endearing traits is that of clinging to a finger with all four paws, rather like a harvest mouse on a corn stalkChinese hamsters can be quite nervous as youngsters but, once they are tame, display an endearing calmness and gentleness of character.
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==History==
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The Netherland dwarf was first bred in the [[Netherlands]], as its name implies, in the early [[20th century]].  Medium-sized rabbits of various breeds were bred with wild [[European rabbit]]s of unusually small size; after several generations the resulting animal was a very small domestic rabbit available in a wide variety of colors and patterns.  Netherland dwarfs were first imported into the [[United Kingdom]] in the [[1950s]]In the [[1960s]] and [[1970s]] the [[United States]] imported its first Netherland dwarf rabbits.
  
In the past, Chinese hamsters were commonly used [[Experimental_animal|laboratory animals]], until they were replaced by the common mouse and rat, which are easier to keep and breed. However, quite a few biotech drugs are still being produced by putting the gene for the protein into [[Chinese_Hamster_Ovary_cell|Chinese hamster ovary (CHO) cells]], which then produce the protein.
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Early dwarfs, even into the 1970s and [[1980s]], had fearful and sometimes aggressive [[temperament]]s as a result of [[breeder]]s selecting [[breeder (animal)|breeding animals]] for size, not [[personality]].  These rabbits behaved more like [[wild]] rabbits than domestic animals and did not make good pets. However, through generations of [[selective breeding]], the modern Netherland dwarf has become a gentle, friendly pet rabbit, though it still retains a more energetic disposition than larger breeds.
  
Of note, some states such as California regard the Chinese hamster as a pest, and as a result require a special permit to own, breed or sellBe sure to check with your local authorities on the subject.
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==Appearance==
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[[Image:Netherlanddwarf-loki.jpg|thumb|right|Young Netherland dwarf in a mismarked Himalayan pattern]]
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[[Purebred]] Netherland dwarfs come in a wide variety of colors, including [[List of rabbit breeds#Himalayan|Himalayan]], Black, Blue, Chocolate, Lilac, Smoke Pearl, Sable Point, Tortoiseshell, Chestnut, Siamese Sable, Opal, Lynx, Squirrel, [[List of rabbit breeds#Chinchilla|Chinchilla]], Otter, Tan, Silver Marten, Sable Marten, Smoke Pearl Marten, Orange, Fawn, Steel, Blue-Eyed White and Ruby Eyed WhiteOther colors (including ''mismarks'') exist in non-show-quality Netherland dwarfs and in dwarf [[mongrel]] rabbits.
  
==External links==
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Netherland dwarfs' [[head]]s and [[eye]]s are disproportionately large with respect to their bodies, and their ears are tiny and carried high on the head. Additionally, their faces are rounded and shortened. These features, a part of the animals' [[dwarfism]], cause them to look [[infant]]ile even into [[adulthood]].
*[http://www.hamstertips.net Chinese Hamster Tips and Care]
 
*[http://www.hamster-heaven.com Hamster Heaven]
 
  
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Dwarf crosses frequently retain some of these characteristics, depending on the breed the dwarf is crossed with.  However, crosses rarely look as babyish as the [[purebred]] dwarfs and are usually somewhat larger.
  
[[Category:Hamsters]]
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==Netherland dwarfs as pets==
[[fr:Cricetulus]]
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:''Main article: [[Domestic rabbit#Rabbits as Pets|Domestic rabbit]]''
[[nl:Chinese dwerghamster]]
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[[pl:Chomik chiński]]
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===Behavior===
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Netherland dwarf rabbits have the same basic behavioral traits as other domestic rabbits. They can be litter-trained and socialized with [[dog]]s and [[cat]]s.
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They tend to have [[wikt:spunky|spunkier]] and more energetic [[temperament]]s than larger breeds of rabbit and are rarely content to sit still when outside of the cage.  They are curious animals and have a tendency to nibble on nearby objects and even human beings.  However, they are extremely fragile animals and easily stressed, and as such they do not make good pets for young children.
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===Diet===
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Like other domestic rabbits, dwarf rabbits consume [[grasses]], [[cereal|grains]], and other succulent [[Leaf vegetable|greens]]. Their [[digestive system]] is somewhat less hardy than their larger cousins, and many leafy vegetables such as lettuce and cabbage can give them health problems.  Generally [[hay]] and a [[pellet]]ed feed should make up the largest portion of their diet.
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==Dwarf breeds==
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Rabbit breeds derived from breeding larger rabbits with the Netherland dwarf are known as ''dwarf breeds''.  Most smaller breeds, like the Mini-Rex, the Jersey Wooly, and the Holland lop, are results of such breedings.  Generally dwarf breeds are slightly larger than the typical Netherland dwarf, not growing larger than 4 to 5 lb (1.8 to 2.3 kg).  Most have shortened faces compared to larger rabbits, and some even preserve the rounded [[head]], large [[eye]]s, or small [[ear]]s of the Netherland dwarf.
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Most dwarf breeds are intended to bring a specialized characteristic, such as a specific fur type, into a smaller rabbit.  Mini-Rex were created through the breeding of dwarfs with [[List of rabbit breeds#Rex|Rex]] rabbits, a fur breed with a short, [[plush]] coat, and retain both the dwarf's size and the Rex fur.  Jersey Woolies are a dwarf version of the [[Angora rabbit]], a [[wool]]-producing breed.  [[List of rabbit breeds#Lop|Lop]]-eared rabbit breeds, interbred with dwarfs, were used to create [[Holland lop]] and Mini-lop rabbits.
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==See also==
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*[[List of rabbit breeds]]
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*[[American Rabbit Breeders' Association]]
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*[[Cuteness]]
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[[Category:Rabbits as pets]]
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[[Category:Leporids]]
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[[zh:荷蘭侏儒兔]]

Revision as of 00:34, 9 July 2006

'RABBITS RULE THE WORLD!!!!!!!!!!!!!!!!!!!!!' :This article concerns a particular breed of rabbit, the Netherland dwarf. For information on domestic rabbits in general, see Domestic rabbit. For information on the country, see Netherlands

A pet Netherland Dwarf

The Netherland Dwarf is a popular breed of domestic rabbit (Oryctolagus cuniculus). Smaller than most rabbit breeds, Netherland dwarf rabbits weigh 1 to 3 lb (0.5 to 1.4 kg) and are usually kept as pets or exhibition animals. They are not typically used as sources of meat or fur because their small size makes them inefficient for these purposes.

Most rabbits sold in pet stores are Netherland dwarfs, Netherland dwarf-derived breeds (often referred to simply as dwarf breeds), or dwarf crosses. Their popularity as pets stems from their babyish appearance and their cage space requirement, which is smaller than that of larger rabbit breeds.

History

The Netherland dwarf was first bred in the Netherlands, as its name implies, in the early 20th century. Medium-sized rabbits of various breeds were bred with wild European rabbits of unusually small size; after several generations the resulting animal was a very small domestic rabbit available in a wide variety of colors and patterns. Netherland dwarfs were first imported into the United Kingdom in the 1950s. In the 1960s and 1970s the United States imported its first Netherland dwarf rabbits.

Early dwarfs, even into the 1970s and 1980s, had fearful and sometimes aggressive temperaments as a result of breeders selecting breeding animals for size, not personality. These rabbits behaved more like wild rabbits than domestic animals and did not make good pets. However, through generations of selective breeding, the modern Netherland dwarf has become a gentle, friendly pet rabbit, though it still retains a more energetic disposition than larger breeds.

Appearance

Young Netherland dwarf in a mismarked Himalayan pattern

Purebred Netherland dwarfs come in a wide variety of colors, including Himalayan, Black, Blue, Chocolate, Lilac, Smoke Pearl, Sable Point, Tortoiseshell, Chestnut, Siamese Sable, Opal, Lynx, Squirrel, Chinchilla, Otter, Tan, Silver Marten, Sable Marten, Smoke Pearl Marten, Orange, Fawn, Steel, Blue-Eyed White and Ruby Eyed White. Other colors (including mismarks) exist in non-show-quality Netherland dwarfs and in dwarf mongrel rabbits.

Netherland dwarfs' heads and eyes are disproportionately large with respect to their bodies, and their ears are tiny and carried high on the head. Additionally, their faces are rounded and shortened. These features, a part of the animals' dwarfism, cause them to look infantile even into adulthood.

Dwarf crosses frequently retain some of these characteristics, depending on the breed the dwarf is crossed with. However, crosses rarely look as babyish as the purebred dwarfs and are usually somewhat larger.

Netherland dwarfs as pets

Main article: Domestic rabbit

Behavior

Netherland dwarf rabbits have the same basic behavioral traits as other domestic rabbits. They can be litter-trained and socialized with dogs and cats.

They tend to have spunkier and more energetic temperaments than larger breeds of rabbit and are rarely content to sit still when outside of the cage. They are curious animals and have a tendency to nibble on nearby objects and even human beings. However, they are extremely fragile animals and easily stressed, and as such they do not make good pets for young children.

Diet

Like other domestic rabbits, dwarf rabbits consume grasses, grains, and other succulent greens. Their digestive system is somewhat less hardy than their larger cousins, and many leafy vegetables such as lettuce and cabbage can give them health problems. Generally hay and a pelleted feed should make up the largest portion of their diet.

Dwarf breeds

Rabbit breeds derived from breeding larger rabbits with the Netherland dwarf are known as dwarf breeds. Most smaller breeds, like the Mini-Rex, the Jersey Wooly, and the Holland lop, are results of such breedings. Generally dwarf breeds are slightly larger than the typical Netherland dwarf, not growing larger than 4 to 5 lb (1.8 to 2.3 kg). Most have shortened faces compared to larger rabbits, and some even preserve the rounded head, large eyes, or small ears of the Netherland dwarf.

Most dwarf breeds are intended to bring a specialized characteristic, such as a specific fur type, into a smaller rabbit. Mini-Rex were created through the breeding of dwarfs with Rex rabbits, a fur breed with a short, plush coat, and retain both the dwarf's size and the Rex fur. Jersey Woolies are a dwarf version of the Angora rabbit, a wool-producing breed. Lop-eared rabbit breeds, interbred with dwarfs, were used to create Holland lop and Mini-lop rabbits.

See also

zh:荷蘭侏儒兔