Waheguru gave the animals reproductive systems to create offsprings that potentially can be created and work. If the reproduction did not happen simply means the sperm is unfit for the womb. Humans merely experiment.
A good combination is boxing/kickboxing and judo.
Judo teaches you more about how to throw someone to the ground and some basics on what to do if you do end up on the ground. A more useful art the BJJ IMO which is very ground grappling based.
Agreed but the point is to not let the followers lose what they believe in and have it be misrepresented. The proponents should be strong and not waver when other followers of different faiths try and make them waver