When is a puppy not a puppy?

Author: Martin William

All pictures we got from our Animal's Look Facebook page fans except the last two.


Brice C Ryan et al 2002, Intrauterine Position Effects

Lindsay S R 2000, Handbook of Applied Dog Behaviour and Training Vol 1

Hastings P & Rouse E 2004, Another Piece of the Puzzle: Puppy Development

Scott JP & Fuller JL 1965, Genetics and the Social Behavior of the Dog

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