You should take your rabbit to the vet.
Not fighting, par say, but i think Miss Rabbit was rimming Mr Rabbit and perhaps got her teeth caught on him....
They don't: there's no normal reason for a rabbit of either sex to bleed. If your rabbit is bleeding, go to a vet. See the related question below for details. Sometimes a rabbit's urine is reddish and that doesn't mean it's bleeding. Rabbit urine can change colour depending on the weather, stress levels, dehydration, what foods they've eaten, etc.
The female rabbit is most likely to have Coccidiosis which promotes very bloody diarrhea in severe cases.
Black tar-like poo in rabbits can be a sign of internal bleeding or ingestion of a toxin. This is a serious condition that requires immediate veterinary attention. Lack of appetite in a rabbit can also indicate a critical issue. Please take your rabbit to a vet as soon as possible for a proper diagnosis and treatment.
I think you mean Butcher rabbit and it is a rabbit bred for its meat
Rabbits do not get a menstrual cycle. If she is bleeding, you should take her to a vet ASAP to find out what's going on. I recently took my rabbit to the vet when I found blood on the bottom of her cage, and it turned out to be a broken nail.
If your rabbit's feet are bleeding it probably has a condition called sore hocks. The first thing you do is clean and dis -infect your rabbits cage. Then you need to get it off of the wire. This can be done by putting a nestbox or a sitting board in the cage for your rabbit. Some people will use a carpet square which is fine as long as your rabbit doesn't decide to eat it. Then you will have to pull it out and give it a sitting board.Cleaning the rabbits feet and putting Neosporin ointment or some other antibiotic cream on it's feet. One that doesn't taste good is preferrable as they will lick their feet.
Sounds like there was internal bleeding, but the only way to know for sure is to get an autopsy.
Sadly, it could be a sign of brain trauma. I had a little white rat before and when I awoke one morning it also had blood around the nostrils. Sadly shortly after he passed on.
His nickname was rabbit in the movie 8 mile he was in
when your female rabbit is mean it usually means that the rabbit is pregnant and is trying to protect her bunnies. they usually bite you or will not let you touch them by hiding in the back corner of the hutch.