It depends on what proportions you're talking about. If you're talking male Great Dane and female Chihuahua then definitely not, as the female is simply too small to be mounted by the male. Artificial insemination is always an option, and required for survival of certain breeds similar to and including the French Bulldog. Technically speaking, any two breeds of dog can mate, even if it requires help from humans.
Yes. It is not advisable to allow a big dog near a small bitch when she is in heat. Often, the resulting puppies are too large to be delivered normally, and a C-section will be required ($$$). Have the dog neutered and the bitch spayed, and everyone will be happier.
Yes. For example, a labrador would be too big for a chihuahua, or a golden retreiver, etc... Hope this helps ya.
It can but it may kill the female when the pups are born because she is too small for the puppy.
Yes, they can. It doesn't mader the size they are, it only maders when they have something mently wrong with them. Research dogspecialist in find friends. She might have a better answer.
Yes.
male and female what?
You make more dogs that probably won't find a forever home. Plus I think depending on the size difference your female could die from it.
No, a Syrian Hamster needs a male to become pregnant.
a male and a female "DO IT"
A vasectomy prevents a male making a female pregnant. It does not prevent a female getting pregnant since she could get pregnant with a male who has not had a vasectomy or by artificial insemination.
a female peacock gets pregnant by the tears of male peacock
No, there has to be a male so the female can get pregnant.
Yes. A female hamster cannot become pregnant unless it mates with a male hamster.
No, it is either a female if it is pregnant or an over fed male ! Just a fun fact, male seahorses get pregnant, but that is about the only animale where the male does.
No, a human female cannot get pregnant by sucking the male's penis.
Well, the male doesn't really do anything. The male just protects the female. It depends how close the male and female is.
Yes!