maybe if you want to breed him... outherwise he is a perfectly healthy dog
Your dog should be examined by your veterinarian. There is no way to diagnose your dog over the Internet.
Take the dog to a vet, they could tell you.
your dog isa messed up in the head
As long as blood is pumping through the testicle then it should have a pulse, the left testicle should have a pulse too.
Yes, I think he can get a female dog pregnant with 1 testicle.
It shouldn't be, the "testicle tubes" on either side should be the same.
yes. one is supposed to be in the shape of a pear. the other should look like a small dog.
No, because this would mean that the dog would still be able to sire young.
Any testicle problems should be taken to a doctor. There are many reasons for differences. See the link below.
No. Your immune system would attack the foreign organ.
There are many possible reasons for a lump on your testicle. You should see a doctor as soon as possible. See the link below.
A boy with an undescended testicle should be taken to a doctor as early as possible. See the link below.