Did you happen to catch the Google Doodle from yesterday? It was a celebration of the 41st anniversary of Western science's discovery of the Mexican migratory home of the Monarch Butterfly. People may know that Monarchs tend to overwinter in Mexico, but do you know anything about their discovery , their longstanding place in local culture, or how their migratory habitat is doing now? Paul Farrell over at lists 5 cool facts about the Monarchs that you may or may not already know. Enjoy!