Merck Manual

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Ferrets at a Glance

Ferrets at a Glance

Average weight

Male: 4 lb (2 kg)

Female: 2.5 lb (1.2 kg)

Normal heart rate

200 to 250 beats per minute

Normal respiratory rate

30 to 40 breaths per minute

Average internal body temperature

100°F to 103°F

Life expectancy

6 to 10 years

Recommended environmental temperature

65°F to 75°F (never over 90°F)