I`ve read that the aggression shown in male mice is due to a pheromone they ommit in their urine. Maybe if we can find a way to switch that off it would save all the hassle! Scientists also discovered just recently that mice carry an `itch` gene, which they turned off by injecting these mice with a substance in a trial and the mice stopped scratching. I have a link to a Youtube video somewhere showing one mouse on one side of a tank and another mouse on the opposite side. Mouse `A` was given this treatment to prevent it from itching, the other mouse was`nt. Watching the behaviour of both mice is clear to see. One walks around the tank looking inquisitive, while the other mouse stops to scratch itself all the time.
I wish conventional mice were not so prone to the allergies and illnesses that lab mice can be cured of. Anyway, we need to study pheromones in male urine now! :lol: