I think this is rather funny, Its like saying humans now can take a bullet better then they could 40 yrs ago. Nonsense hit it where it counts and thats that. Animals anatomy has not chagned in such a way that it can now be resistant to bullets now that it couldnt 40 yrs ago. I do find humor in this though reading some comments. if you hit the animal and it didn't drop or you had no trail then the wounds were such that injury was not sufficent to make a blood trail. But is is impossible as I mentioned for animals to build resistance to bullets especially if you took a 100lb deer now and a 100lb deer 40 yrs ago. The only difference may be that like humans deer may breed larger now then 40 yrs ago but 100lbs is 100lbs so if their the same size the same injury would occur. therefore no resistance can be built up, sorry to burst a bubble.
