Self-harm - in Other Animals

In Other Animals

Self-harm in non-human mammals is a well-established, although not a widely-known phenomenon; its study under zoo or laboratory conditions could lead to a better understanding of self-harm in human patients. Zoo or laboratory rearing and isolation are important factors leading to increased susceptibility to self-harm in higher mammals, e. g. macaque monkeys. Lower mammals are also known to mutilate themselves under laboratory conditions after administration of drugs. For example pemoline, clonidine, amphetamine, and very high (toxic) doses of caffeine or theophylline are known to precipitate self-harm in lab animals. In dogs, canine obsessive-compulsive disorder can lead to self-inflicted injuries, for example canine lick granuloma. Captive birds are sometimes known to engage in feather-plucking, causing damage to feathers that can range from feather shredding to the removal of most or all feathers within the bird's reach, or even the mutilation of skin or muscle tissue.