Gently but firmly hold it down to the ground in a submissive pose, holding it between the head and the torso.
yes
If they are fixed they shouldn't do that, but if they are not, they probably are really wanting to mate with a female. My female rabbits sometimes do the same. Rabbits of both sexes sometimes mount other rabbits in a show of dominance: it isn't always a sexual behaviour. If the dominance turns aggressive, the rabbits should be separated. Rabbits can only be kept together if they're bonded, which means they can be trusted not to fight. See the related questions below for details and links.
The rabbits fleeing the warren. The rabbits on their journey. The rabbits fighting for dominance. The rabbits trying to free the pet rabbits. The new warren. The enemies of the rabbits.
Rabbits spray to mark their territory or show dominance. This behavior can be managed effectively by spaying or neutering the rabbit, providing enough space and enrichment, and using positive reinforcement training techniques.
complete dominance....
Rabbits of both sexes mount each other as a show of dominance. Mounting isn't always sexual. Dominance can turn into aggression, especially if one or both males aren't neutered, so you might want to separate the rabbits as a precaution. Definitely separate them if they're fighting: see the related question below for details and links.
There are show jumping rabbits:)
Rabbits spray to mark their territory or show dominance. To prevent rabbit spraying behavior, spaying or neutering your rabbit can help reduce the urge to spray. Providing enough space, toys, and attention can also help prevent spraying.
Types of dominance, multiple alleles, sex linked inheritance, polygenic inheritance and maternal inheritance.
It was Thumper on Bambie... What show?
monkey
Incomplete dominance