It’s a Dog’s Life – the what and who of training and behaviour

Weaning: When the puppies reach about _____ weeks of age, they may . begin to develop _____ and the mother often acts uncomfortable about nursing. ... During this time the puppy will reach its physical maturity, will go through _____, and should be _____ or _____ if it is not to be used for breeding purposes. ... Geriatric dogs do not adjust to ... ................
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