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

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{{Taxobox
 
{{Taxobox
 
| color = pink
 
| color = pink
| name = Syrian or Golden Hamster
+
| name = Dwarf Winter White Russian Hamster
| image = 100_983.jpg
+
| image = Phodopus_sungorus2.jpg
 
| image_width = 250px
 
| image_width = 250px
 
| regnum = [[Animal]]ia
 
| regnum = [[Animal]]ia
 
| phylum = [[Chordate|Chordata]]
 
| phylum = [[Chordate|Chordata]]
| subphylum = [[Vertebrate|Vertebrata]]
 
 
| classis = [[Mammal]]ia
 
| classis = [[Mammal]]ia
| ordo = [[Rodent]]ia
+
| ordo = [[Rodentia]]
 
| subordo = [[Sciurognathi]]
 
| subordo = [[Sciurognathi]]
 +
| infraordo = [[Myodonta]]
 
| superfamilia = [[Muroidea]]
 
| superfamilia = [[Muroidea]]
 
| familia = [[Cricetidae]]
 
| familia = [[Cricetidae]]
 
| subfamilia = [[Cricetinae]]
 
| subfamilia = [[Cricetinae]]
| genus = ''[[Mesocricetus]]''
+
| genus = ''[[Phodopus]]''
| species = '''''M. auratus'''''
+
| subdivision_ranks = Binomial name
| binomial = ''Mesocricetus auratus''
+
| subdivision =
| binomial_authority = [[George Robert Waterhouse|Waterhouse]], 1839
+
*''Phodopus sungorus''
 +
*''Phodopus sungorus sungorus''
 +
(see text)
 
}}
 
}}
 +
'''Winter White Russian hamsters''' are a species of [[hamster]] in the genus ''[[Phodopus]]''.  They are typically half the size of the better-known [[Syrian hamster]], and therefore called dwarf hamsters along with all ''Phodopus'' species. Features include a typically dark gray dorsal stripe and furry feet. The tail is so short that it hardly shows when the hamster is sitting. As winter approaches and the days get shorter, Winter Whites' dark fur greys until it is almost completely white (hence the name). In the wild, this adaptation helps them evade predators in the snow covered Steppes of winter.
  
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.
+
Up until recently, it was debated whether the Winter White hamster was a sub-species of the Campbell's (''Phodopus campbelli'') or not, however, it has now been proven that the Winter whites are of their own species, ''Phodopus sungorus''.
  
==Biology==
+
==Winter White Russian hamsters as pets==
 +
They are often found on the [[pet]] market, in [[Europe]] and [[Asia]] more so than in the [[United States|U.S.]]. Care is similar to that of the Campbell's [[hamster]]. Winter White hamsters generally make excellent pets, however, a larger Syrian [[hamster]] would be more suitable for younger children as they can be handled more clumsily. Winter White hamsters should not be fed food containing sources of [[monosaccharide]]s because of the risk of developing [[diabetes mellitus]].
  
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 burrows.  They 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. They are notoriously good at reproducing, with the shortest gestation period of any mammal.
+
Winter White's, like their close relatives the Campbell's, can be housed together in pairs or trio's, or perhaps more. They enjoy each others company and are possibly the most communal hamsters in terms of living arrangements.
  
[[image:Jan2306_122.jpg|thumb|left|male teddy bear hamster]]
+
In general, dwarf hamsters typically have more of a family structure than the Syrian hamster. Dwarf hamsters will happily live in mated pairs, with both male and female caring for the young, but some report that same-sex pairs and larger groups will rarely get along well, as they wouldn't live together like that in nature. Frequent fighting may occur and be a great distress for them, or even lead to deadly incidents. This is in contrast to the Campbell's species and remains an item of dispute among hamster owners.
  
Most hamsters in American and English pet stores are Syrian Hamsters.  Originally, Syrian Hamsters came in just one color--the mixture of brown, black, and gold which gave them their "Golden" name--but they have since developed a myriad of color mutations such as cream, white, blonde, banded, tortoiseshell, calico, and sable. Therefore in pet stores today, ''Golden Hamster'' is only used to label the orginal coloration (also known as "agouti), while the other-colored short-hairs are banded under the lable ''Fancy Hamster''.  ''Teddy Bear'' is a term used to describe the long-haired variety of the Syrian Hamster, named so for their remarkable resemblance to toy teddy bears.  They are also sometimes known as "angora hamsters".  Male teddy bear hamsters usually have much longer fur than the female variety, culminating in a "skirt" of longer fur around their backsides.  ''Black Bears'' are a recent off-shoot of teddy bear hamsters (mutation discovered in 1985), with their major difference being their black-colored fur.  It can be argued that black bears are just black teddy bears rather than their own breed; on the other hand, black bears are selectively bred for their larger size and more docile nature as well as their color.
+
Winter White hamsters used to be only available in their typical Brown/black "Normal" color, but they are now available in a variety of colors. Colors include at least normal (dark gray/brown), pearl normal, sapphire and pearl sapphire variations. However, these colors may be difficult to find, and the number of available colors is much smaller than in the dwarf Campbell's hamster.
  
Syrian Hamsters are wildly popular as housepets due to their docile, inquisitive natures and small size. They are popular as "first pets" for young children, as well as being classroom animals, because of their hardiness and relative ease of care.  Some pet owners find them more attractive in relation to rats and other rodents due to their lack of visible tails. 
+
[[Image:Phodopus_sungorus.jpg|thumb|right|250px|Dwarf Winter White Russian Hamster, normal color]]
  
Syrian Hamsters have also been used in scientific research--in the study of many diseases, as well as in the study of behaviour.  They have a number of [[fixed action pattern]]s that are readily observed, including scent-marking.  They are particularly used in airway and respiratory physiology research.
+
== External links ==
 
+
*[http://www.xander.it/video.htm Xander.it] - Winter White video gallery
== Discovery ==
+
*[http://www.petwebsite.com/hamsters/dwarf_winter_white_russian_hamsters.htm PetWebSite pages on Winter Whites]
 
+
*[http://www.furrycritters.co.uk FurryCritters]
[[Image:hamster.jpg|thumb|right|albino golden hamster]]
+
*[http://news.bbc.co.uk/1/hi/sci/tech/720421.stm] - Djungarian fathers care for the pups
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.
 
 
 
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. Soon after their initial discovery, they were found to make great pets.  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.
 
 
 
==See also==
 
*[[Hamster]]
 
 
 
==External links==
 
*[http://www.xander.it/video.htm Xander.it] - Video collection of Syrian hamsters (page is in Italian)
 
*[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.petwebsite.com/hamsters/syrian_hamsters.htm Petwebsite Entry on Syrians]
 
*[http://hometown.aol.com/TheRiverRd/ The River Road Hamstery]- Very good information on hamster breeding, especially for coat types
 
*[http://www.hamsoc.org.uk/varieties.php The Hamster Society]
 
  
 +
[[Category:Hamsters]]
 
[[Category:Animals kept as pets]]
 
[[Category:Animals kept as pets]]
[[Category:Hamsters]]
 
  
[[bg:Златист хамстер]]
+
[[de:Dsungarischer Zwerghamster]]
[[de:Goldhamster]]
+
[[fr:Hamster russe]]
[[fr:Hamster doré]]
+
[[fi:Venäjänkääpiöhamsteri]]
[[it:Mesocricetus auratus]]
+
[[it:Phodopus sungorus]]
[[he:אוגר זהוב]]
+
[[ja:ジャンガリアンハムスター]]
[[nl:Goudhamster]]
+
[[nl:Russische dwerghamster]]
[[ja:ゴールデンハムスター]]
+
[[pl:Chomik dżungarski]]
[[pl:Chomik syryjski]]
+
[[zh:短尾侏儒倉鼠]]
[[fi:Kultahamsteri]]
 
[[sv:Guldhamster]]
 
[[zh:敘利亞倉鼠]]
 

Revision as of 04:28, 31 March 2006

Template:Taxobox Winter White Russian hamsters are a species of hamster in the genus Phodopus. They are typically half the size of the better-known Syrian hamster, and therefore called dwarf hamsters along with all Phodopus species. Features include a typically dark gray dorsal stripe and furry feet. The tail is so short that it hardly shows when the hamster is sitting. As winter approaches and the days get shorter, Winter Whites' dark fur greys until it is almost completely white (hence the name). In the wild, this adaptation helps them evade predators in the snow covered Steppes of winter.

Up until recently, it was debated whether the Winter White hamster was a sub-species of the Campbell's (Phodopus campbelli) or not, however, it has now been proven that the Winter whites are of their own species, Phodopus sungorus.

Winter White Russian hamsters as pets

They are often found on the pet market, in Europe and Asia more so than in the U.S.. Care is similar to that of the Campbell's hamster. Winter White hamsters generally make excellent pets, however, a larger Syrian hamster would be more suitable for younger children as they can be handled more clumsily. Winter White hamsters should not be fed food containing sources of monosaccharides because of the risk of developing diabetes mellitus.

Winter White's, like their close relatives the Campbell's, can be housed together in pairs or trio's, or perhaps more. They enjoy each others company and are possibly the most communal hamsters in terms of living arrangements.

In general, dwarf hamsters typically have more of a family structure than the Syrian hamster. Dwarf hamsters will happily live in mated pairs, with both male and female caring for the young, but some report that same-sex pairs and larger groups will rarely get along well, as they wouldn't live together like that in nature. Frequent fighting may occur and be a great distress for them, or even lead to deadly incidents. This is in contrast to the Campbell's species and remains an item of dispute among hamster owners.

Winter White hamsters used to be only available in their typical Brown/black "Normal" color, but they are now available in a variety of colors. Colors include at least normal (dark gray/brown), pearl normal, sapphire and pearl sapphire variations. However, these colors may be difficult to find, and the number of available colors is much smaller than in the dwarf Campbell's hamster.

Dwarf Winter White Russian Hamster, normal color

External links

de:Dsungarischer Zwerghamster fr:Hamster russe fi:Venäjänkääpiöhamsteri it:Phodopus sungorus ja:ジャンガリアンハムスター nl:Russische dwerghamster pl:Chomik dżungarski zh:短尾侏儒倉鼠