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

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{{Taxobox begin | color = pink | name = Golden or Syrian Hamster}}
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:''This article concerns a particular breed of rabbit, the Netherland dwarf.  For information on domestic rabbits in general, see [[Domestic rabbit]].''
{{Taxobox image | image = [[Image:100_983.jpg|250px]] | caption = }}
 
{{Taxobox begin placement | color = pink}}
 
{{Taxobox regnum entry | taxon = [[Animal]]ia}}
 
{{Taxobox phylum entry | taxon = [[Chordate|Chordata]]}}
 
{{Taxobox subphylum entry | taxon = [[Vertebrate|Vertebrata]]}}
 
{{Taxobox classis entry | taxon = [[Mammal]]ia}}
 
{{Taxobox ordo entry | taxon = [[Rodent]]ia}}
 
{{Taxobox subordo entry | taxon = [[Sciurognathi]]}}
 
{{Taxobox superfamilia entry | taxon = [[Muroidea]]}}
 
{{Taxobox familia entry | taxon = [[Cricetidae]]}}
 
{{Taxobox subfamilia entry | taxon = [[Cricetinae]]}}
 
{{Taxobox genus entry | taxon = ''[[Mesocricetus]]''}}
 
{{Taxobox species entry | taxon = '''''M. auratus'''''}}
 
{{Taxobox end placement}}
 
{{Taxobox section binomial | color = pink | binomial_name = Mesocricetus auratus | author = [[George Robert Waterhouse|Waterhouse]], | date = 1839}}
 
{{Taxobox end}}
 
  
The '''Syrian Hamster''' or '''Golden Hamster''', ''Mesocricetus auratus'', is the best known member of the [[rodent]] [[subfamily]] [[Cricetinae]], the [[hamster]]s.  They may now be [[extinct]] in nature, but are popular as house pets all across the world, and are also used in scientific research. Adults grow from 12.5 to 17.5 cm (5 to 7 inches) in length, and in captivity will usually live from 2 to 3 years.
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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.
  
==Biology==
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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.
Like most members of the subfamily, the Golden Hamster has expandable cheek pouches, which reach from its cheeks to its shoulders.  In the wild, hamsters are [[larder hoarding|larder hoarders]], and they use their cheek pouches to transport food to their burrowsThey can load a remarkable amount of food into their pouches; their name in the local [[Arabic language|Arabic]] dialect in the area where they are found translates as "father of saddlebags" &#1571;&#1576;&#1608; &#1580;&#1585;&#1575;&#1576;.  If food is plentiful, they will store it in large amounts, and it has been reported that 25 kg of grain was found in the burrow of a single hamster.
 
  
[[Image:hamster.jpg|thumb|left|albino golden hamster]]
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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.
  
Most hamsters in American and English pet stores are Syrian Hamsters.  ''Teddy Bear'' is a term sometimes used for the longhaired variety of the Syrian Hamster, and the so-called ''Black Bear'' hamster is just a Syrian Hamster with black fur. All of them may well indeed be the descendants of a single mother.
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Early dwarfs, even into the 1970s and [[1980s]], had fearful and sometimes aggressive [[temperament]]s as a result mistreatment of the animal, no animal is aggresive by nature they simply get scared and try to defend themselves because people are much larger than they are no animal is aggresive by nature. who ever wrote that last crock that i have just edited needs to have their head checked. These rabbits behaved more like [[wild]] rabbits than domestic animals and did not make good pets though with proper treatment they would have. 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.
  
Golden Hamsters have been used in scientific research, in the study of many diseases, and also in the study of behaviour.  They have a number of [[fixed action pattern]]s that are readily observed, including scent-marking.
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==Appearance==
It is widely used in medical research, particularly in airway and respiratory physiology research.
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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]], Red, Siamese, [[List of rabbit breeds#Chinchilla|Chinchilla]], Blue, and White-tipped Black. Other colors (called ''mismarks'') exist in non-show-quality Netherland dwarfs and in dwarf [[mongrel]] rabbits.
  
== Discovery ==
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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]].
  
In [[1839]] [[Britain|British]] [[zoologist]] [[George Robert Waterhouse]] reportedly found an elderly female hamster in Syria, naming it ''Cricetus auratus,'' the Golden Hamster. The hamster's fur was on display at the [[British Museum (Natural History)]]The Syrian Hamster was then ignored by European science for the next century. Around 1930, zoologist and Professor at the University of Jerusalem [[Israel Aharoni]] found a mother and litter of hamsters in the [[Syria]]n desert. By the time he got back to his lab, most had died or escaped. The remaining hamsters were given to the [[Hebrew University of Jerusalem]], where they were successfully bred. They were a bit bigger than the ones Waterhouse found, so they were named ''Mesocricetus auratus'', although they were probably the same species. ''Mesocricetus auratus'' is the currently accepted scientific name of Syrian Hamsters.
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Dwarf crosses frequently retain some of these characteristics, depending on the breed the dwarf is crossed withHowever, crosses rarely look as babyish as the [[purebred]] dwarfs and are usually somewhat larger.
  
Descendants of these hamsters were shipped to scientific labs around the world, for use as research animals. They arrived in the [[United Kingdom]] in 1931, and in 1938 reached the United States. Just about all Golden Hamsters are descended from the original litter found in Syria, except for a few that were brought into the United States by travellers who found them in the desert. A separate stock of hamsters was imported into the US in 1971, but it isn't known if any of today's North American pets are descended from them.
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==Netherland dwarfs as pets==
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:''Main article: [[Domestic rabbit#Rabbits as Pets|Domestic rabbit]]''
  
==See also==
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===Behavior===
*[[Hamster]]
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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.
  
==External links==
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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.
*[http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=10036&lvl=3&keep=1&srchmode=1&unlock Genome information]
 
*[http://www.freedigitalphotos.net/thumbnails.php?album=9 Pictures of a Syrian or golden hamster]
 
*[http://www.savetherennets.com Spoof hamster website]
 
*[http://www.hamsterhouse.co.uk/wiki/doku.php/hamsters:syrian Syrian Hamsters Hamsterhouse]
 
  
[[Category:Animals kept as pets]]
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==See also==
[[Category:Hamsters]]
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*[[List of rabbit breeds]]
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*[[American Rabbit Breeders' Association]]
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*[[Cuteness]]
  
[[bg:Златист хамстер]]
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[[Category:Rabbits as pets]]
[[de:Goldhamster]]
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[[Category:Leporids]]
[[fi:Kultahamsteri]]
 
[[he:&#1488;&#1493;&#1490;&#1512; &#1494;&#1492;&#1493;&#1489;]]
 
[[nl:Goudhamster]]
 
[[pl:Chomik syryjski]]
 
[[sv:Guldhamster]]
 
[[zh:敘利亞倉鼠]]
 

Revision as of 20:06, 20 January 2006

This article concerns a particular breed of rabbit, the Netherland dwarf. For information on domestic rabbits in general, see Domestic rabbit.
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 mistreatment of the animal, no animal is aggresive by nature they simply get scared and try to defend themselves because people are much larger than they are no animal is aggresive by nature. who ever wrote that last crock that i have just edited needs to have their head checked. These rabbits behaved more like wild rabbits than domestic animals and did not make good pets though with proper treatment they would have. 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, Red, Siamese, Chinchilla, Blue, and White-tipped Black. Other colors (called 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