that's cool stuff. I remember an interview not long ago discussing how one state (might have been Georgia or New Mexico) put a bounty on wolves because they thought the population was getting out of control. While the wolf population drastically decreased with hunters getting tags to wipe them out the result was a massive increase in coyotes. The average for coyote young was something like a 25% survival rate but with wolves no longer around to kill them and eat their food (easier to find resources like deer) it jumped to something like 80% so instead of having 30,000 wolves they now had 100,000 coyotes. (my exact #'s are probably wrong but the inverse relationship is accurate)
for every action there is a reaction...