Join Date: Sep 2012
Location: Central Western NSW, Australia
It really does all depend on the dog.
Here's the story. If you don't want to read it, it is summarized at the end.My family lived for a long time with two dogs - a young (Scooby, currently 5) miniature fox terrier and an old (Toby, currently 12) labrador, both neutered males. A couple of years ago, we saw an ad for a free entire 2 year old labrador dog. We went to see him and I fell in love with 'Bundy'.
Brought him home, and all hell broke loose. Toby and Bundy did NOT get along and, according to a pet psychic we contacted, he felt as though he was being replaced as Bundy was younger, more virile, and therefore more capable of protecting the family.
To make matters worse, we then took in two newborn puppies from a litter of 15, one male and one female. Bundy and Scooby were great with them both, but Toby hated them. Problems with Bundy were continuing, so we sold him and things started to settle. When we sold the male pup, things were back to normal - Toby adored the female puppy now that she was old enough to know when to back off. Sadly we sold her too, and are now back to the original two dogs.
If you couldn't be bothered reading that, one of my dogs hated having another male around, but loved having a female so long as she understood that he was old and got sick of her sometimes. My other dog couldn't care less and just loved having someone to play with.