<<In most other mammals induced lactation is rare or impossible without a pregnancy.>> I have known a spayed, virgin dog (bitch actually) to produce milk when a newly weaned kitten was adopted into the family and latched on to the dog, literally. The dog was blissed out, and they both enjoyed this relationship for some months. At the time I inquired and discovered it was not at all unusual. Ros Escott [log in to unmask]