Ferrets (Mustela putorius furo)

Ferrets are members of the class Mammalia, order Carnivora, and family Mustelidae, which also includes mink and polecats. Ferrets are considered obligate carnivores, indicating that they need to be provided with food sources of animal origin to fulfil their nutrient requirements. Ferrets can be housed indoors and outdoors, as long as protection against the elements is provided. Pet ferrets may react aggressively to each other, and this can be the most frequently reported behavioural problem. Ferrets may be fearful of humans, which can manifest as avoidance or aggression. Ferrets can suffer from several diseases, including many infectious agents. Influenza is a common primary cause for respiratory disease in ferrets. Ferrets in pain are often lethargic, immobile, and anorexic, although some ferrets may become more anxious and restless. Signs of discomfort or pain also include crying and whimpering. Ferrets in fear, frustration, or pain may also squeal and scream.