Most of them don't. But some women have a fold of skin that restricts the size of the opening, and this fold might tear a little during intercourse.
A sow is a female pig that has mated before. While a gilt is a female that is going to be its first time mating.
When the female goes into heat, can be any time of the year
The best time for mating a female is between the seventh and fourteenth day of her season.
keep tem separated unitl it is mating time
When the female dog is ready for mating, one time is enough.
Sometimes, yes.
it depends on where the bleeding took place but go to a doctor.
Because there is more males vying for a certain female and sometimes males will fight over a female and on the odd occasion the female may fight a male. Like human females we do have our preferences. LOL
That is completely normal, the female might not accept the same male 2 times in a row, unless it doesn't recognize it.
After mating, the penguin's penis retracts back into its body and the female penguin may store the sperm for fertilization at a later time.
Dogs typically mate when the female is in heat, which is a natural reproductive behavior. During this time, the female releases pheromones that attract males. It's important to spay/neuter pets if you don't intend to breed them, to prevent unwanted pregnancies.
Jills are induced ovulators or ovulation is induced by mating. If mating does not occur, and the Jill (female ferret) remains in heat for long period of time, it can lead to serious illness.