Fly strike is where flies lay their eggs in the rabbits anal or genital area which in turn hatch into maggots and eat the rabbit alive. To prevent it, clean the rabbits genital area regularly. Treat it with a safe insecticidal disinfectant. Check your rabbits anus and genitals regularly for feces that have become stuck to the fur, as this attracts the flies. Always try to keep your building clean and free of flies. Again, the most dangerous animal in the world is the common housefly. Because of their habit of visiting animal waste, they transmit more disease than any other creature.
I don’t believe that the body can grow strong due to tendon/CNS adaptations as you keep asserting. That may work for a few weeks when you begin a new exercise & improve motor skills and structurally adapt, but it will not last long. You will never get strong in the long run if your muscles are not also growing. But I think many people have vastly overestimated the impact on your appearance that gaining muscle actually has. Gaining 5 lbs of fat will make you appear much sloppier, but gaining 5 lbs of lean muscle will not make that much visual difference while wearing clothes