i wouldnt be worried mate exactly same thing happend with my mates alsation greyhound at about 11 months, and he just done work with a rabbit skin dummy an took it out on its own an 1 day it just clicked and now it cant stop catching them
i can remember reading somewhere that the beddies knees are closer together than the rest of the legs which when crossed to a whippet or greyhound is suppose to help them turn quicker, dont know if that is true though
i doubt that is possible, if it is then you should be able to do it with other animals and even humans :S and i have never heard of a women having twins with two different dads lol