Comparative studies of domestic and wild Syrian hamsters have shown reduced genetic variability in the domestic strain. The average litter size for Syrian hamsters is about seven pups, but can be as great as 24, which is the maximum number of pups that can be contained in the uterus. Taxonomists generally disagree about the most appropriate placement of the subfamily Cricetinae within the superfamily Muroidea.

If housed together, acute and chronic stress might occur, [8] and they might fight fiercely, sometimes fatally.Female hamsters are also particularly sensitive to disturbances while giving birth, and may even eat their own young if they think they are in danger, although sometimes they are just carrying the pups in their cheek pouches. This kind of thermoregulation diminishes the metabolic rate to about 5% and helps the animal to considerably reduce the need for food during the winter. Some activists attempted to intercept owners who were on their way to turn in pet hamsters and encourage them to choose adoption instead, which the government subsequently warned would be subject to police action.

They communicate by sending a specific scent using their scent glands and also show body language to express how they are feeling. million years to the Middle Miocene Epoch in Europe and North Africa; in Asia it extends 6 million to 11 million years. the way he said 'come on' to her is dad anyway, but whwn you see his ridicolous dick is really ilarious. Effect of Exercise on Photoperiod-Regulated Hypothalamic Gene Expression and Peripheral Hormones in the Seasonal Dwarf Hamster Phodopus sungorus".These littermates were captured and imported in 1930 from Aleppo in Syria by Israel Aharoni, a zoologist of the University of Jerusalem. Mother hamsters can also use their sense of smell to find their own babies and identify which ones are not theirs.

Syrian hamsters are seasonal breeders and will produce several litters a year with several pups in each litter.Dwarf hamster species might tolerate siblings or same-gender unrelated hamsters if introduced at an early enough age, but this cannot be guaranteed. Hamsters tend to love peanut butter but it is important to feed it to them carefully because this sticky food can get stuck in their cheeks. Neumann, K; Michaux, J; Lebedev, V; Yigit, N; Colak, E; Ivanova, N; Poltoraus, A; Surov, A; Markov, G (2006). If captive female hamsters are left for extended periods (three weeks or more) with their litter, they may cannibalize the litter, so the litter must be removed by the time the young can feed and drink independently. Hamsters are more crepuscular than nocturnal and, in the wild, remain underground during the day to avoid being caught by predators.