That's just hoggone nasty!

One sus scrofa, aka feral hog, gone and 7,999,999 to go. Rob came home this evening and shot one in our backyard with his .45. According to "Hogs in Your Backyard", feral hogs are "are intelligent, secretive, and adaptive ecological generalists that are capable of exploiting a wide variety of both habitats and forage resources." There is that AND they have virtually no predators. We're in a war, people.

Challenge question: 
How many feral hogs will exist in the USA by 2020 if they continue to reproduce at the current estimated rates?

Here's the math - in 1990 there were approximately 500,000 to 2 million - in 2012 there were approximately 3 to 8 million. 

Challenge activity:
Hunt them down now to end the Aporkalypse. Got bacon?