Quote:
Originally Posted by Murreydobe  It really depends on the breed. There are breeds whose original function was to work together in a cooperative unit that have few to no problems with same sex aggression.
However, littermates of any breed are more likely to fight than two dogs from different litters. |
Let me preface what I am going to ask by saying I don't doubt it is true that littermates are more likely to fight than two dogs from different litters.
What I want to know is does anyone know "why" littermates are more likely to fight? I mean, it seems to me that two 4 month old puppies would be just that.. why does being a littermate make a difference?