Answer:
Rabbits have extremely long and strong hind limbs (that is to say, rear legs). This adaptation allows them to hop very quickly and very far.
Rabbits can run quickly, as well. In fact, the average rabbit can run between 25 and 45 miles per hour. Not only are rabbits fast, but they can quickly change the direction in which they're running in order to confuse the predator chasing them. If they are caught, they kick the attacker (Fox in this case) to save themselves. Their legs are strong enough to push off and harm the predator.
Rabbit's fur helps it to camouflage, or blend in, with its surroundings. For example, arctic rabbits are white to blend in with the snow, but they change to a reddish-brown color to blend in during the autumn season. In addition to acting as camouflage, rabbit fur serves as protection.
Rabbits eyes are placed on the sides of the head, this allows rabbits to see in all directions, so chances are, when the predator is approaching, it will quickly see it and run.