One of nature's most perfect relationships Every spring the monarch butterfly migrates thousands of miles in search of the ideal milkweed plant. When she finds it, she lays her eggs on the plant, so when each egg hatches, the baby caterpillar can feed on the milkweed leaves. The milkweed plant then provides the perfect protection as the caterpillar turns into one of nature's wonders, a chrysalis, before transforming into an even greater wonder: a...