Milking It for Monarchs

Imagine having to choose just one food to live off for half of your life. While I'm certain fried walleye

would be a good option, or pizza would work, or even wild rice brats fresh off the grill could sustain

about anyone, the hedging exhibited just in this sentence alone shows how difficult it would be. Now

imagine you're a monarch butterfly, and you don't have a choice. From birth through its ca...