A hamsters heart beats close to 450 beats per minute.
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Because the hamster is smaller, its heart has to work incredibly fast to keep oxygen and blood throughout its body. The average heartbeat for a hamster is around 450.
heart beat of a mouse is 650 times per minute
call his doctor.
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A fly has to beat its heart faster than larger animals to support the blood circulation. Flies can beat their hearts at about 5 Hertz.