Hamsters are rodents belonging to the subfamily Cricetinae. The subfamily contains about 25 species, classified in six or seven genera. They have become established as popular small house pets and partly because they are easy to breed in captivity, hamsters are often used as laboratory animals.
In the wild, hamsters are crepuscular and remain underground during the day to avoid being caught by predators. They feed primarily on seeds, fruits, and vegetation, and will occasionally eat burrowing insects. They have elongated cheek pouches extending to their shoulders in which they carry food back to their burrows.
Hamster behavior varies depending on their environment, genetics, and interaction with people.
Although the Syrian hamster or golden hamster (Mesocricetus auratus) was first described scientifically by George Robert Waterhouse in 1839, researchers were not able to successfully breed and domesticate hamsters until 1939.[2] The entire laboratory and pet populations of Syrian hamsters appear to be descendants of a single brother-sister pairing. These littermates were captured and imported in 1930 from Aleppo [Syria] by Israel Aharoni, a zoologist of the University of Jerusalem. In Jerusalem, the hamsters bred very successfully. Years later, animals of this original breeding colony were exported to the USA, where Syrian hamsters became one of the most popular pets and laboratory animals.[citation needed] Comparative studies of domestic and wild Syrian hamsters have shown reduced genetic variability in the domestic strain. However, the differences in behavioral, chronobiological, morphometrical, hematological, and biochemical parameters are relatively small and fall into the expected range of interstrain variations in other laboratory animals.
แฮมสเตอร์มีงานของ subfamily Cricetinae Subfamily ที่ประกอบด้วยประมาณ 25 ชนิด ประเภทในสกุลหก หรือเจ็ด พวกเขาได้กลายเป็นสร้างเป็นบ้านขนาดเล็กที่นิยมเลี้ยง และเนื่องจากพวกเขาจะง่ายต่อการแพร่พันธุ์ในเชลย แฮมสเตอร์มักจะใช้เป็นห้องปฏิบัติการสัตว์ในป่า แฮมสเตอร์มี crepuscular และอยู่ใต้ดินในระหว่างวันเพื่อหลีกเลี่ยงการถูกจับ โดยล่า พวกเขากินอาหารเป็นเมล็ดพืช ผลไม้ และพืช และบางครั้งจะกินแมลง burrowing พวกเขามีอีลองเกตแก้มถุงขยายให้ไหล่ของพวกเขาที่พวกเขาพกอาหารไป burrows ของพวกเขาหนูแฮมสเตอร์ลักษณะแตกต่างกันของสภาพแวดล้อม พันธุศาสตร์ และการโต้ตอบกับคน Although the Syrian hamster or golden hamster (Mesocricetus auratus) was first described scientifically by George Robert Waterhouse in 1839, researchers were not able to successfully breed and domesticate hamsters until 1939.[2] The entire laboratory and pet populations of Syrian hamsters appear to be descendants of a single brother-sister pairing. These littermates were captured and imported in 1930 from Aleppo [Syria] by Israel Aharoni, a zoologist of the University of Jerusalem. In Jerusalem, the hamsters bred very successfully. Years later, animals of this original breeding colony were exported to the USA, where Syrian hamsters became one of the most popular pets and laboratory animals.[citation needed] Comparative studies of domestic and wild Syrian hamsters have shown reduced genetic variability in the domestic strain. However, the differences in behavioral, chronobiological, morphometrical, hematological, and biochemical parameters are relatively small and fall into the expected range of interstrain variations in other laboratory animals.
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