Cannibalism

Cannibalism in dogs refers to eating conspecifics, a behaviour that almost never occurs in healthy, well-nourished dogs. Documented cases concern almost exclusively situations of extreme neglect or severe behavioural disorders.

How often does cannibalism occur between adult dogs?

In adult dogs, cannibalistic behaviour is documented to a vanishingly small extent. The few known cases are associated with severe malnutrition over weeks, complete social isolation or neurological diseases.

Wild dog populations also do not show this behaviour; even in times of food scarcity, they resort to carrion or other protein sources before attacking conspecifics.

Why do some female dogs kill their puppies?

Killing of puppies by the mother is rare and not due to cannibalistic motives. Most cases have clear triggers:

Stillborn or severely ill puppies: Female dogs instinctively recognise non-viable puppies and remove them from the litter. This protects healthy siblings from infections.

Overwhelmed with large litters: With more than eight puppies, a female dog may neglect or kill individual young animals. First-time mothers show this behaviour twice as often as experienced mothers.

Extreme stress situations: Disturbances in the first 48 hours after birth, loud noises, strangers, or a change of location can trigger this behaviour.

When should breeders intervene?

Act immediately in cases of: repeated removal of individual puppies from the litter, aggressive behaviour towards young animals from the third day of life onwards, or signs of feeding behaviour on dead puppies.

Preventive measures include: setting up the whelping box two weeks before birth, banning visitors for the first four weeks, and close observation during the first three days for first litters.

What distinguishes true cannibalism from normal behaviour?

True cannibalism means actively hunting and killing healthy conspecifics for consumption. This differs from the instinctive removal of dead or sick puppies, which represents an evolutionarily sensible behaviour.

In adult dogs, this distinction practically does not exist; cannibalistic behaviour only occurs under pathological conditions.