"Now which would you rather have people wandering about looking for their next Big Mac or hungry lions?"
Actually the latter is the answer to the former.
To thin out(no pun intended) the slowest and the fattest by introducing very hungry lions that will either eat them or make then run off the extra fries.
Then of course you have to decide what to do with fat lions.....LOL
Dont cha love the way nature works in harmony to benefit all God's creatures? lol